Electrical Engineering Stack Exchange
Electrical Engineering Stack Exchange

Questions tagged [nicd-battery]

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

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

See also Wikipedia on NiCd batteries.

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What is the lower limit of NiCd cell voltage?

I have some old NiCd cells, and I have a bench power supply. From what I read about NiCd batteries, I understood that a psu alone can’t charge them fully because it can’t measure the delta V. I saw some circuits for that, but I couldn’t understand…
noname delete
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Issues with simple NiCd battery charger circuit

Inspired by this circuit, I'm trying the following one for charging 2 NiCd batteries: simulate this circuit – Schematic created using CircuitLab There is a current limiter part, with a red LED (D3) indicating that the charging is in progress. The…
ulrich
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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 bought a new pack with a charger anyways, and it's…
André Stannek
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Using NiMH batteries with dumb charger designed for NiCd?

I'm attempting to revive a very old calculator that was designed to use NiCd batteries (no clue about capacity). These batteries act both as a power source but also as a voltage regulator. Charger is in two parts, the wall wart delivers about 10VAC…
P. N.
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How to determine the state of charge of a NiCD battery when charged via a Bench PSU?

I’ve a bunch of Sanyo Cadnica cells of various capacities in my possession. Though they are a bit old they have never been used and are NOS. I’m currently trying to charge a KR-FH 7000mAh cell. As per the label on the battery(please see picture…
The_Vintage_Collector
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Nickel battery balancer

TLDR: The question is about retrofitting a balancer to the Ni-MH battery of an existing appliance (that doesn't trickle charge the battery), preferably in the way that will not require frequent access to the battery. Changing the charge/discharge…
611
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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 V systems, and both have approximately 20 V "wall-wart"-type chargers. Neither system would indicate when the…
mike232
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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 still holding a good charge. The label says, 18vdc…
LinuxFerLife
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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 one will have 1000 mAh and 1.2V. The original…
Mike Gray
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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 the battery is in very bad shape. Testing it with…
TheJamaicanGuy
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NiCd battery charging

I'm looking to select the suitable rate/size of my battery charger to recharge the battery of capacity 740 Ah in 8 hours up to 12 hours maximum. Here's one comment that takes my intention from a previous topic . Typically, a battery is considered…
Tayeb Himri
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NiCd vs supercapacitor in high-current discharge

I'm going to build a drone project (no lead batteries) that will only run for 1-2 minutes, but probably at low temperatures (30C-60C C-rate and sometimes -20°C,) so I will need a nickel-cadmium battery or a supercapacitor. Did I miss anything? What…
Eimrine
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Preventing reverse currents in a NiCd pack during deep discharge

One of the issues with 2s, 3s, 4s, etc. battery packs is that as the pack discharges it's possible for one cell (the one that depletes quickest) to become reverse biased once its internal resistance reaches a high level. This is referenced…
BlueTwin
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How does a fuse prevent battery overcharging/discharging?

How does a fuse protect a battery? I know that it prevents short circuits, but what about overcharging and over discharging? I asked a previous question here, and the recommendation I got was to get a fuse. If a fuse dosent prevent overcharging or…
CircuitB0ard
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Charging 18v Ni-CD battery pack with DROK voltage regulator

I have an 18v 2000mAh black and decker drill battery that I want to charge and use in the mean time while I wait for a proper charger to arrive. I have a DROK Voltage Regulator/Buck converter (https://www.amazon.com/gp/product/B078Q1624B) that has a…
Dark Dragoon
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