Comments from the previous website are not compatible with our new commenting system but we have preserved them so our users can still reference and make use the information in them.
On August 7, 2019, Scott wrote:
I bought a Craftsman 19.2, 4 port multi chemistry charger, when one of my single port chargers died, it says, it will charge Li-ion and ni-cd, doesn't say it will charge nimh, which I have (4) of, what will happen if I do charge nimh in it?? My single charger is for a nimh's but it gets hot when I use it. Will my new one be to fast a charge for nimh?? I checked Amazon and some single ones will charge all 3 types, what's the difference??
On May 18, 2019, Mark Sullivan wrote:
This page says, "Flooded NiCd is charged with a constant voltage to about 1.55V/cell." I don't understand. If the voltage is constant, then what does "to" a certain voltage even mean? Is it possible this is supposed to say, "constant current?"
On March 8, 2019, Adepoju Adeniyi wrote:
Does the Schneider Electric Conext SW4024 inverter has a NiCd charging mode as i am thinking of buying one to use in charging renewable NiCd batteries.. Any suggestion is appreciated. Thanks
On January 6, 2019, Fred wrote:
I have a Realistic TRC222 catalog nr 21-1646 handheld CB radio It calls for 10 ni-cad AA batteries nr 23-125 1.2V which I cannot find) What I need to know is what is written on the wall charger as far as mAh is concerned so I can get the correct value of batteries and of course get the wall charger too.
On October 30, 2018, Leon1 wrote:
Thank you.
On January 26, 2018, manicks wrote:
100 X nickel cadmium batteries alcade type l29p 2 X floor standing self contained 30v 3aaa battery charger with 1 conel dc for module 10 load please send me quotations
On January 2, 2018, Edmund wrote:
For the sake of battery longevity and your safety, I would suggest buying the appropriate lithium ion charger. These two chemistries may perform the same but their charging methods differ.
On December 27, 2017, Morris Brooks wrote:
Sears told me a 19.2 volt lithium ion battery would replace my 19.2 volt nicad battery...it works great in the drill...but will not go in the nicad charger because of little plastic tit* on the inside of the neck of the lithium battery...if I break those plastic tit* off it will fit in nicad charger....Can I charge the lithium batt.in nicad charger...my thought it would take a little longer is all..HELP
On December 27, 2017, Edmund wrote:
Lotfy, you can give dead batteries to a local recycle facility or hardware/electronics store. Don't just throw them in the trash or recycle bin. If you haven't used your newer batteries in a while, just check their voltage and charge them accordingly. Happy holidays.
On December 25, 2017, Abdelrahman Lotfy wrote:
Hello, kindly advise me for how we ca give up the Ni-CD batteries after it's life time also please if i have a lot of new NI-CD batteries doen't work for few years, ho can i re-sue it? Waiting your response ASAP. BR, Abdelrahman
On December 15, 2017, Chican wrote:
Thanks Edmund. It helped alot. May God bless you.
On October 30, 2017, Edmund wrote:
Also from my experience, 15V source is not enough to charge these batteries to their full potential. They sit at around 13.5V, which is fine, but if you want it to stabilize at 15V, you need a higher potential, thus, the 18-20V that most of these chargers output.
On October 29, 2017, Edmund wrote:
These battery packs also tend to come with a thermal cutoff switch or thermistor to prevent overheating of the batteries. My brother also has a nickel cadmium charger and it measures about 20V open circuit, so I think you're okay with the 18V charger. You can always ask the technical team of the manufacturer of your charger for more specific answers too. Another example is that a typical 12V solar panel will actually read about 18V open circuit but will drop once a load is connected, such as a battery. So I wouldn't worry too much.
On October 27, 2017, Chican wrote:
I appreciate the quick reply edmund. Thanks Yes charger has protection feature very simple one using single bjt npn transistor to cutt off. I already measured the voltage when battery is plugged in. It raise to 15v max and there's no cutt off and battery gets hot. The adapter that is connected to battery is to cutt off while in this adapter a wall adapter ac to dc 18v is to be plugged. They might have given wrong ac to dc adapter. It should be 14.5 or 15v The next adapter that is the connector to battery is desiged to cutt off input dc for charging battery at a certain voltage level. I checked that certain voltage level that is equal to the amount of input. So if 18v dc supply is connected and battery reach to 18v then it would cutt off. Also if a 12v supply is connected and battery reach at 12v it cutt off. I think i should replace the adapter 18v with 15v But not sure about which voltage would be correct for a nicd battery pack of 1.2v*10=12v I have also seen that 12v battery drill have 12v ac/dc adapter to charge while battery shoulf be charge at more voltage than its capacity. I hope you understand and help me!! Thanks
On October 27, 2017, Edmund wrote:
You are measuring the open circuit voltage. If you put a load on it, such as charging your batteries, it should drop. The charger should also have other protective circuits to cutoff current when the battery reaches a certain voltage, probably around 14-15V.
On October 26, 2017, Chican wrote:
I read all comments and article and i am confused now. Please help me. I bought a 12v cordless drill. I opened battery cover there were 10 NiMh cells in series each of 1.2v made 12v total. The charger gjven is 18v at 500mA. As i know 12v battery should charge at 13.5-14.5 to max 15v? So why company gave me wrong charger. I also checked the cutt off function with my power supply that it cutts off at 17.4v which isnt good for my 12v drill battery. Kindly help me....??? Plz to solve this mystery.
On September 2, 2017, Pozod wrote:
Problem solved, found out that the Victron charge controller is programmable to adjust the voltage to accommodate NiCd batteries. I would definitely recommend this product to anyone looking for a great controller.
On September 1, 2017, Pozod wrote:
Nelson Lee Bailey and Sara, I zapped my batteries with a 24V solar panel and after a few seconds, you can start to see the battery voltage stabilizing and charging with a multimeter. I did this to several 1.2V NiCd/NiMH cells and they are holding their charge fairly well now. The good thing about these batteries is that they can take a large voltage input, which you can see from YouTube, where people have zapped them with large amounts of current and voltage, and yet, the battery remains intact. This is just from my experience working with electronics in my garage, so just take it as some advice. Make sure to wear proper protective equipment such as gloves, eye protection and a face mask when working with these batteries. Good luck.
On August 30, 2017, Pozod wrote:
I salvaged NiCd and NiMH cells from power tool packs and was able to remove the faulty cells. I made groups of 10 cells to make 12V. I paralleled 7 groups to make a total capacity of about 12Ah. I connected them to a 75/15 Victron Solar MPPT charge controller and its running off of a 24V solar panel. The panel is only outputting about 2A with full sun. The controller is defaulted to about 14.4V during its absorption phase to the battery, so is this okay even though it is lower than the 15.5V recommended?
On August 18, 2017, Sara wrote:
For regeneration of Ni-Cd Battery, I'm doing as follow: First I'm charging my Ni-Cd battery to get its capacity with C5/4 for 8h and then discharging it to 1.1V with Rate of C. Then after continuing to discharge it to 0.8V with C/10. I didn't get significant improvement on its capacity. Would you please help me with that. Thanks a lot Regards, Sara
On August 7, 2017, Nelson Lee Bailey wrote:
My 18 volte power tool battery wont take no charge what can I do
On February 11, 2017, Alex wrote:
lately I noticed the level of electrolyte in Nickel-cadmium batteries less than the max marking level indicated on the batteries. what should I do ? Is there electrolyte selling in the market as I am looking to top up the loosing of the electrolyte. Thank you.
On January 14, 2017, anita wrote:
mayank verma wrote: On October 6, 2015 at 10:03am Unfortunately, we cannot suggest or make designs for you you have to do your homework look what is available on the market and reverse engineer them this is the best I can do
On January 14, 2017, anita wrote:
ray wrote: On July 9, 2016 at 9:45am I hope you got some answer before now, but yes they may be bench charged It is very difficult to make suggestions without knowing what tools and knowledge you have I understand you got the battery pack out of the machine are the celles accessible? cans you open the battery case? often in NiCad batteries cells short-out due to dendrites I would strongly recommend that you give the project to a local technician I am sure you can find some equivalent batteries in an electronic store near you
On January 14, 2017, anita wrote:
Tom wrote: On October 25, 2016 at 3:00pm not recommended! 1 you mentioned a 18V battery (they typically charge at 21V) your charger 6V, the plug may fit, but could be wrong polarity...hence why use only appropriate charger
On December 16, 2016, T Putman wrote:
I inherited 4 NiCad ED-240 batteries. & a Cragg railcharger 15N-1/Anyone know the lifespan on them? Theyve been sitting in barn for 5 years. Need simple advise how to charge them? Settings, how long on charger, how to test them, Im totally clueless. Appreciate and layman term help here...Thankyou
On October 25, 2016, Tom wrote:
I have a drill that uses an 18 volt NiCad battery and I have found a 6 volt 500mA charger that has the correct plug in to the battery receptacle but I am not sure that this is the correct charger. Can you let me know how to verify that this charger is the correct one. Thanks.
On October 11, 2016, Morning Dove wrote:
If you want to charge it do not use your Debit Card, but use your Credit Card...... Swipe and Sign and it is charged. Thanks for all of the good information. Being an old-timer, there were no Ni Cad batteries when I got my Masters. Have Fun Every Day!
On July 9, 2016, ray wrote:
hi, my elderly friend left his stairlift in the un-parked position & batteries are flat & even though i've now manually moved it back, the batteries won't charge. they are Freeway Ni-Cd d5000mAh 12v Bison 80. can i bench charge them somehow & if so, what could i buy or use to do this please? i want to save him some money if possible as new batteres seem to be well over £200. many thanks ray in the uk
On June 16, 2016, Kushal Gajurel wrote:
I have a Ni-Cd battery rated 2000mAh, 6V. There are 6 cells, 1.2v/cel. How much voltage and current should i use to charge the battery without full charge detection? I read few articles and decided to charge with ac (after using a transformer to reduce the voltage to 8 V dc using a rectifier circuit) with 0.1C( in my case 200mA) current hoping the battery to get charged in about 10-14 hours but the battery reached a voltage of 4.7 V form 2.2 V within half an hour. I really don't seem to understand the charging speed. Will such a fast charging harm my battery. And how are the cells connected in the pack( series or parallel)? and how does that affect the charging. I am completely new to this realm. Can you help me?
On May 2, 2016, Engr. Ghazanfar Ali Khan wrote:
Please guide ," WHY NI-CD BATTERY CELLS BULGE AND START LEAKING LATTER".
On February 22, 2016, NAIN SINGH wrote:
Thank you for proving this information.We have Nickel Cadmium Batteries each set of 180 Ah capacity. I understand that there are three types of charging method of Nickel Cadmium Battery namely Initial charging before putting service,Float charging and Equalizing charging if cell voltages become unbalanced or or once every six months if the battery has been in floating charge mode, but not discharged. I want to know the voltage per cell in each type of charging method.
On January 2, 2016, David Cassibry wrote:
Hi, I have some nickle cadmium bat. packs. I use them for my rc airplanes . They haven't been used in 4 to 5 years. They are made by Futaba. 9.6VDC-600mAH, charging says 60mA-15hours. Are these batteries still chargeable ? Also a 4.8v 600mAh . Both take 15hours to charge. And what charger do you recomend?
On October 6, 2015, mayank verma wrote:
Greetings, My name is Mayank Verma . I'm a student at university of petroleum and energy studies in India. I am currently working on a project called as solar urja lamp, in this we have to make a lamp that is economically fit for making and manufacturing. The main purpose of this lamp is to provide it to the need full people who can not buy a lamp or doesn't have the reach to electricity. We have to built a lamp that charges on solar energy and stores it in a battery. Now the main concern is to choose a battery that can last 1500 charge and discharge cycle and that is cheap and could light up LEDs that gives around 300-400 lumens and store energy for the days where there will be no sunlight. It would be great if you could help us in any manner, providing any knowledge about which battery is apt and best to use for such purpose. Wishes, Mayank Verma 9557110746
On September 5, 2015, PCL wrote:
I have a Black & Decker cordless screwdriver with a 3.6 V Lithium Ion Battery. It was fine for a while, then died; after checking over the owner's manual and other material on these batteries, I've concluded that the charger is too dumb to shut off the current once the cells are charged and that tends to destroy them. Needless to say, I won't be buying B&D products again for a long while. My Sears drill has a charger that runs its cycle and stops; B&D should learn from them. Anyway, I'd like to stick a NiCad battery in place of the expensive, failure-prone Lithium Ion pack, using the same charger; will that work? I know NiCad cells are more tolerant of dumb chargers than either NIMH or Lithium Ion, so I'm hopeful.
On October 30, 2014, Michael wrote:
I bought a DirtDevil Scorpion that just won't charge. It goes past its 24 hours and the light remains red, as if still charging and even if left longer the power won't last more than 4 minutes. Dirt Devil is replacing it so no problem and this one should be thrown away but then I thought is it possible to make this battery come to life? Under its specs it says: Nickel cadmium 6V 6 amps. One thing I tried is while charging I removed it from the charger for about 2 minutes then set it on/off/on/off real quick about 6X (having seen this elsewhere for old used batteries) but nothing happened. Any advice would be appreciated. Or could the charger actually be the problem? Thanks
On September 12, 2014, Donna Davis wrote:
I have several AAA Nic Cad batteries. Can these be recharged if they do not say rechargeable on them.
On May 27, 2014, paramu wrote:
How much electrolyte liters we need to fill the SBLE 185 Nickel cadmium battery. I want to know in liters. please advice and let me know.
On February 13, 2014, Tim Rujera wrote:
I have an Energizer charger that states in its manual to use only Nickel Metal Hydride (NiMH) rechargeable batteries. Is it possible for me to use the charger for Nickel Cadmium rechargeable batteries?
On October 11, 2013, Gizmo wrote:
Hello, I have a 20-cell 36Ah battery with a problem. After performing a main charge @ 0,5A for 2 hours, I continue with a final charge of 0,1A for 4 hours. The voltage gradually increases during the main charge, until it reaches 31V (roughly 1,55V/cell) after which I switch to the final charge. The final charge starts at roughly 30V (the voltage naturally drops a bit when lowering the Amperage), but instead of slowly increasing over the following 4 hours, the voltage actually decreases in those 4 hours, ending at 29V (roughly 1,45V/cell). I have now done three cycles and it keeps happening. Water level is sufficient, as I have checked during each cycle. I also discovered that it is not just one or a few, but ALL cells that drop in voltage during final charge. Does anyone have an idea as to why this happens, and what I could possibly do to remedy the situation?
On September 21, 2013, Robert wrote:
I just bought a blow-up bed that has a Ni-Cad battery. The charger they sent plugs into the wall and charges the battery on the pump for the bed. On the charger supplied it reads on it AC/DC adaptor. Class 2 power supply. Input 120v 60 Hz 4.1w Output 7.5V DC 250mA. What I would like is a charger that I could plug into my 12 volt car cigarette lighter and charge the battery's on the pump. Would you be able to sell me this and if so what is the model #.
On August 13, 2013, Abdulla wrote:
A 125v transportation ultracap module. Assuming a 2000 kg car deccellerates at a constant rate from 60kph to a stop in 2 seconds. Calculate how much energy could be recovered into this module by the regenerative braking system. Assume the motor/generator is 90% efficient. hi guys can u give a hand to solve the problem
On March 7, 2013, Leon Follmer wrote:
We are not in phase, no pun intended. All transformers have an input and output voltage and amperage. If you measure the voltage at the output clips you get the open circuit emf. On my 18 v chargers I get from 22 to 24 volts. I must assume that my charger is a constant voltage output. So what can I do with it? How can I determine which it is? The discussion above does help me at the stage of a beginner because the discussion has many variables and "code" words which seem ambiguous to me. Example: how do I achieve 0.1 C? The concept of C must contain some value for voltage. I assume it is based on the battery. The discussion above needs examples that show values and calculations, etc. I did find in a reference that Ni-Cd batteries should be charged at "1.4x the ampere-hours of discharge". What does this mean? How do I deconvolute this expression?
On March 6, 2013, jerry wrote:
To answer your question precisely, the voltage ratio you are seeing of 22/18 to 24/18 is 1.22 to 1.33 which is close but I don't think you can rely on this for maximum efficiency as my single cells are closer to 1.2 for good, newer cells. Also batteries with thermistors will charge at higher rates and if you are using leads to connect the batteries they will have a voltage drop as well at high current. Jerry
On March 6, 2013, jerry wrote:
Leon, In order to charge NiMH and NiCD batteries effectively, you need a constant current source, not a voltage source. When you say your chargers are supplying 22 to 24v, that would be the voltage swing I would expect across a sample of batteries as the charger is supplying constant current at differing voltage rates to account for the variability in batteries. Once you have a constant current source, you can charge at differing rates from .1C to 1.5C against time for fully discharged batteries without much worry. The problems start when you attempt to charge by time at constant current batteries with remaining charge. The only safe and effective way to charge batteries is either 1) by .1C for 15 hours; or 2) by .5C or higher using a combination of NDV, dTdt, max temp, max voltage, time, etc. These features are provided by smart IC or microcontroller based chargers attached to a constant current source. I've recently been designing a charger (with the help of those on this board) that is what I consider the ultimate for single cell NiMH or NiCD batteries as I found most of the smart chargers to be lacking. I am using a combination of microprocessor and computer control to track voltage & temperature curves. I am amazed how after plotting about 50 such curves how closely the profiles match for good cells. Feel free to contact me at clist@hanler.com. The moderator on this forum is very, very, knowledgeable on all these subjects. Jerry
On March 2, 2013, Leon Follmer wrote:
You almost touch on the point, but I'm confused. I want to find the basics. It takes more than 18 v to charge an 18 volt battery. My chargers put out 22-24 volts. I assume that is near optimum. Does this ratio hold for all battery sizes? I just landed on this site and have not read all the comments yet. I plan to go through all the info on this site and I figure that my answers are there somewhere. If you can give me some pointers I would appreciate it.
On March 2, 2013, jpt wrote:
@Leon Follmer: If i good anwers your question;, you asking how many voltage (v) you must use for best charging, it's really easy. If you use the Ni-Cd ou the Ni-Mh v is not equal. The full charge (v) of Ni-CD is average 1,415v per cell.. The full charge (v) of Ni-MH is average 1,445v per cell (30 mV more) For example with 10 Cell, if you want fully 10 cell you must have (in Ni-CD). 1,415 x 10 = 14,15 v exactly. But.... when the cell is 90% Fully there are not current, why ? I (A) is too edge, exemple two: When the 10 cells are empty the v is 12 V 14,15v - 12v = 2,15v, here the current of charging is high beceause v is many. When 14,15v = 14,15v = No current. For fully chargin, just add edge minor v. exemple: 14,15v + 0,3v = v charge is 14,45v After is delta peak detection technology, use edge more v again 15v If ONLY linear charge WITHOUT detection D peak use 14,45v average, it's better Sorry for my bad english
On March 1, 2013, Leon Follmer wrote:
Good question. I have 3 18 v chargers and their output ranges from 22 to 24 volts. 36 volts seems marginally high, but would work if you disconnect before it gets too hot. I am trying to find a better answer. At the moment I am taking 18 v packs apart and finding a few dead cells and many good ones. I want to find the optimum v for charging the cells. I have found the zapping a cells with 12 v brings them back to life for a while.
On January 17, 2013, Mike Cain wrote:
I have a new18V NiCd battery pack, it has 15 1300mAh NiCd batteries wired in a series. I wanted to trickle charge it to get all the cells to the same charge level. When I checked the voltage of the wall charger that it came with, it was outputting around 36V. That seems really high and I can't find any information on what would the appropriate voltage to be supplied or even if supplying 36V would be bad. What voltage should I use to charge that battery pack at .1C? Thanks
On December 9, 2012, james edmonds wrote:
i have bought a nickel cadmium maintenance free battery from halfords, if it should need charging in the future bad winters to come. can i charge it with my existing charger.
On June 12, 2012, Loh Win Hoo wrote:
Dear Sir, Can i use Nickel Metal Hydride battery charger to charge Nickel Cadmium rechargeable battery? Thanks & Regards LOH
On December 25, 2011, Salmon randa wrote:
I've super brain 989 charger I want to cycle 8 cell of aa nicd battery What rate recomend for charge (mAh) What ampere recomend for charge (A) What rate recomend for discharge (mAh) What ampere recomend for discharge (A)
On November 19, 2011, mohamed wrote:
how can i calculate the battery efficiency???
On October 29, 2011, srswan85 wrote:
g'day, ive just purchesed a nicd 1700ma 7.2v battery and charger backage for my r/c car and i was just wondering if anyone knows how long i should charge hte battery for? muchly appreciated cheers
On September 9, 2011, jpette wrote:
I'm not sure understand your question. With one ni-MH charger, you can charging without problems one battery type Ni-CD. The reverse is not possible (You cannot charging one Ni-Mh with one charger type ni-CD) One battery type ni-MH (detect) is some millivolts, and never UP 1,50v for charging by battery. If you go more (ex: 1.70v) you break the battery (Create Internal Resistance, etc...) The ni-Cd (After one long storage for example) for 100% FULL, in some case charging with 1,85v (max) for good 100% full, and the delta peak is strong 16mV and it's easy for charger to detect the delta peak of this battery. Now you can understand "about similarity between ni-cd and ni-mh charger" It's good for explain ? Excuse my very bad english Regards,
On September 9, 2011, pratik joshi wrote:
can you tell me about similarity between ni-cd and ni-mh charger
On July 20, 2011, Jpette wrote:
James L. McCann wrote: Can you charge the ni-cd batteries with a ni-mh charger? Yes, no problem, you can charging ni-CD Battery With ni-MH Charger. The Delta Peak of ni-CD is Up to 16mV (easy for detect) The reverse is not TRUE (FALSE) The Delta Peak of ni-MH is AVERAGE (Less or More) 5mV, so, charging ni-MH WITH one ni-CD charger, the ni-CD Charger "not see" the delkta peak because the converter analog to digital is too "edge" Excuse my very bad english, but i think you're understand me Best regards
On July 20, 2011, pauline tesnow wrote:
I NEED A CHARGER FOR A HUMMER@H2 IT USES A 9.6V RECHARGEABLENICD BATTERY
On July 15, 2011, James L. McCann wrote:
Can you charge the ni-cd batteries with a ni-mh charger?
On May 8, 2011, Robert Hsu wrote:
Will appreciate receiving info how to maintain Ryobi 9.6V NiCd battery to deliver 800 to 1000 charge/discharge cycles using Ryobi charger. Are there any more sophisticate charger that will prevent Ryobi 9.6V NiCd battery from over-charging?
On March 14, 2011, Manjunath Varadaraj wrote:
3 batteries in a set of 20 batteries has failed. They are all are in parallel connection connected to a online UPS. the 3 defective batteries shows low voltage (also it is blotted/buldged on sides). My battery supplier is saying all the 20 batteries have to be replaced instead of replaceing only 3 defective batteries. kindly advise. All the batteries are more then 2 year old and is presently giving a backup of approximately 3hrs on full load (5kva). (I haven't checked exactly since the power failure happens only for 1hr during working hours)
On March 8, 2011, Brandon wrote:
This article has been updated as of March 8, 2011 with new information.
On March 1, 2011, Jpette wrote:
@Big Kev Yes you found this model (BC-700 or RS-700) without problems in UK. The discharge mode is ine real dischage mode (The processor check in real time slot by slot the state od tension (V) of Ni-Cd or Ni-Mh every 2 sec (average) In discharge mode, if the Volt is minus of 0.90v, this charger stop the dischange and go i, mode "charging"....and wait found (emply accus) delta peak. There are so one security timer (after total cussent sent is more 3700 mA/h, it stop chargin mode), but never fault found (and i have 2 x 100 AA & AAA), old years (some sanyo NI-CD 600mA Yellow), or young (eneloop) The only default of this charger is: No respect with new accus (FAD) of trickle current (Many others so..) For example in charging mode (and current set to 200mA), if you charging one with capacity of 1000mA/h, the tricke current is really average 15mA, it's many. The good current "tricke" is average C/300, example for one 1000mA/h it's 3.3mA I see this after long time, and it's verify by this here: http://www1.duracell.com/oem/rechargeable/Nickel/methods.asp and this "Apply a maintenance charge of indefinite duration at C/300 rate" Many chargers no respect this....and all people think's with Ni-Mh a&fter; C/10 non charging element, it's false...i think if < to C/100 you continue charging (and create memory effect) After same with GOOD converter AN/DA, charging in C/10 is no problem with detect Delta peak...But ONLY with GOOD detect, if you use charger with one "AN/DA" edge, nerver charging one ni-mh with c/10, the Delta peak is no see, and you can "kill" the charger or the accus (ex never charging ni-mh with one C-9000 with charging current < a t C/3) The secret of state of your accus (ni-mh & ni-cd), the quality of charger. Best regards and excuse my very bad english, and many thank's so at this wonderfull website. Jpette
On March 1, 2011, Big Kev wrote:
I have a battery charger with a 'discharge' button , the instructions though are a bit sketchy! The model no is 'BC!HU' and it was sold by 7dayshop here in the UK for about £15 and was advertised as a 'Smart charger' What is considered the best practice with regard to 'discharging'? , pro's and cons , how often etc , etc. I'm particularly interested in using Nickel-metal-Hydride batteries with this unit since my wireless keyboard/mouse combo use them! Many thanks for any advice.
On February 7, 2011, Jpette wrote:
About charging Ni-Mh About this: "It is difficult, if not impossible, to slow-charge a nickel-metal-hydride. At a C?rate of 0.1-0.3C, the voltage and temperature profiles fail to exhibit defined characteristics to measure the full charge state accurately and the charger must rely on a timer. Harmful overcharge can occur if a partially or fully charged battery is charged with a fixed timer." It's true and false. I explain. The result is with the quality of D/A and noise etc...of electronics quality of thes converter and his algorithms detections. One good example: With one Maha C9000 (detect A/N) poor, absolutly ok with you, never use charging less to 0.3C if you want make this, (< 0.3C), this charger "not see" the delta Peak. Now you get one BC 700 (Named also RS 700 or Ipc 1L etc), the concerter is fantastic, here you can catging in less to 0.1C, and the detect of delta Peak is very good. example: possible without problems charge of 2700mA/H with current of 200mA, and delta peak detection is Good. and many many examples about this case. All us in 2 objets: One The quality of converter A/D, and the algorithms for detects the good D Peak. Best regards
On January 29, 2011, H Cohen wrote:
I need either a charger or an adapter for a 18volt NI CAD power tool battery.. I don't know the brand..I have a set of tools labeled "power to go" with 2 batteries..I do have a Dewalt charger ,so if I can get an adapter to work,that would do it also...The closest battery I've seen is one Northern tool sells,that they say is for model # 150785 and # 143396..also no brand given...can you help..
On January 10, 2011, Pamela A. Davis wrote:
I need a battery charger for a 7.4V; 2150mAh Ni-MH battery module (used in the Kodak DSC 520 digital camera).
On December 6, 2010, Harry Spaeth wrote:
For use in a Roland FR-3x electronic accordion, I will need 10 AA type Ni-MH 2000mAh recargeable batteries and a charger for them since they provide only 3 - 5 hours of use per charge. What is the best of each recommended. Thanks.
On November 22, 2010, General manager wrote:
Looking for best charger for aa and aaa rechargeble batteries for electronoc locks , Tv remote etc for commercial use and green enegy concepts
