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NiCd Battery Charger Circuit LM317
How to charge and discharge NiMH/NiCd (1-15 cells) battery packs with Tenergy's TB6B - YouTube
Multiple NiCd & NiMH Battery Charger Circuit
The Best Rechargeable Battery Charger (for AA and AAA Batteries) | Reviews by Wirecutter
How to Make 2.4V Automatic Battery Charger | For Ni-Cd and Ni-MH - YouTube
How to Charge NiMH Batteries: 12 Steps (with Pictures) - wikiHow
How to Make Simple 1.2v Ni-Cd Battery charger || Ni-cd 1.2v battery charger DIY - YouTube