Amazon.com: funkawa 4 Pack- Shockli AA Size LiFePo4 650mAh Battery, AA 3.2V Solar Rechargeable Batteries - Ideal for Solar Garden Light : Health & Household
3.65v 4A Smart Charger Lifepo4 Battery Intelligent Quick Fast Charger 3.2v 3.6v 3.3v 5a DC Clip Plug with Reverse Protection