Questions tagged [nicd-battery]

Anything related to nickel-cadmium (NiCd) rechargeable batteries.

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Converting a 9.6V NiCad Drill to Li-on [closed]

I am trying to convert my 9.6V NiCad drill to run off a 12V Li-on battery. When I connect the Li-On directly, the motor only just slightly spins and stops. The only way I can get it to work is using a ...
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82 views

Safety of Lipo batteries

I help organize a robotics competition in my home town. For the past 16 years, we provided each team with two 12v battery powered drill. They were cheap, easy to find and provided us with 4 batteries, ...
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45 views

Mixing of NiCd batteries with new one

We have in our company Ni-Cd batteries; in each bank we have 142 cells, Amp/h.We found that 17 cells are defective within same bank, and the life of the battery bank is almost 8 years. Now My ...
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Restore or replace an old NiCad battery

I was finally able to buy a used Toshiba T4700CT to play my DOS games. I cleaned it, disassembled it and replaced both the backup battery and CMOS battery, but I have a question regarding the main ...
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6k views

Can I charge a NiCd battery with a NiMH charger?

I have an old NiCd RC battery pack. It was not used for at least ten years but when I tried to charge it with the old charger I was suprised to see it still had some capacity. Now I just went and ...
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95 views

Is There a Way to Measure when a Ni-Cd Power Pack is Fully Charged?

For my battery-powered tool sets (drill, saber saw, jig saw, flashlight, vacuum, etc.) I have Craftsman and Black & Decker. Both are 18 volt systems and both have approximately 20-volt "wall-wart"...
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3answers
3k views

Using Bench Power supply to charge NiCd pack

I have an 18vdc battery powered drill hat works fine but the charger has died and a replacement is $54. Almost double what I paid for the drill plus battery plus charger two years back. Battery was ...
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2answers
267 views

NiCd Batteries rapid drops in voltage?

I have 7 NiCd batteries hooked up in series (ordered from china) for a spare time project of rebuilding an old battery drill. Have been trickle charging them with 8.7V and 0.04A. When the battery is ...
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3answers
86 views

Is 19V safe for charge Ni-Cd batteries?

I have 5 Ni-Cd battery(1.2V 2200mAh). They connected in series. I have a 19 V 3.42 A adapter. Will it make a problem when I charge Ni-Cd batteries with my 19 V adapter? Is 19 V dangerous for charge Ni-...
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1answer
134 views

Charging 3 NiCd AAs in series

I'm building a new battery pack for an electric drill. One of the cells went dead, but I'm replacing all three to make sure they match. The new battery pack will have 3 AA NiCd cells in series. Each ...
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2k views

How Does One Go On Charging Ni-Cd Battery's

Its a simple question but I can't seem to find any info on it. I have two Ni-Cd batteries (listed bellow) so i want to know how to charge them? And how to know if they are completely dead or are still ...
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517 views

Charging battery

I have a NiCad battery that I got from an old rc car. I have some trouble charging it. the battery is rated 6v and the charger's voltage is rated 7.25 (why is it bigger)? however, I measured the ...
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46 views

Characteristic of old SLA/NiCd batteries

I need service an old HVAC equipment (manufactured 1998) backuped using 6x2V SLA 5000mA Cyclone cells (http://www.ges.cz/cz/akumulator-oloveny-cyclon-x-cell-5-0ah-GES07600853.html). There is also ...
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1answer
543 views

Reviving an overdischarged NiCd 12v battery

Some time ago I recovered a 12v 1700mAH Ni-CD battery from an ancient Commodore Amiga black and white display laptop. The laptop works perfectly when powered by a 1.5a 12v adapter, but unfortunately ...
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115 views

Battery voltage changing drastically after use

I have a NiCd 2000mAh 7.2V battery that drives two motors. If I run the motors for 30 seconds, the voltage reduces from 7.60 to 5V. Once motors are stopped, it takes a minute to come back to 7.50V at ...