DIY recharging a battery - General Electronics - Arduino Forum
Make a 18650 Battery Charger, Simple Electronic Project - YouTube
The easiest DIY Lithium Polymer battery charger - A bit more - Donut Science
Multiple NiCd & NiMH Battery Charger Circuit
Intelligent NiCd/NiMH Battery Charger
Build a USB Powered AA NiMH and NiCd Battery Charger
How to Make a 12v Battery Charger : 5 Steps (with Pictures) - Instructables
Build a USB Powered AA NiMH and NiCd Battery Charger
Amazon.com: Tenergy 12V Battery Pack Bundle with Fast Charger Ideal for DIY Projects, Medical Equipments, LED Light Kit, RC Models, Portable 12V DC Devices and More : Health & Household
Gameinstance.com - Smart NiMH Battery Charger - Arduino DIY at its best
NiMH Battery Charger Circuit
Nickel Metal Hydride NiMH Battery Charger Circuit
Intelligent NiCd/NiMH Battery Charger
Smart NiMh battery charger based on Attiny85 (and Arduino) | Electronics & Arduino