Lithium Ion Polymer Battery - 3.7V 150mAh | TinyCircuits.com
Who Really Invented the Rechargeable Lithium-Ion Battery? - IEEE Spectrum
Amazon.com: AA Batteries - USB Rechargeable Double A Lithium Batteries - Li-ion Battery Cell - 1.5V / 1700mAH (4-Pack) - Not NI-MH/NI-CD/Alkaline Batteries - ECO-Friendly and Recyclable - No Memory Effect :
Amazon.com: EBL 8 Pack Rechargeable Lithium AA Batteries, 1.5V 3000mWh Double a Batteries Long Lasting AA Li-ion Battery (8AA with Charger) : Health & Household