With a total capacity of 3500mWh, these batteries are perfect for both high and low drain devices, as well as solar/wind devices.
eBay
Fast charging 1.5V AA lithium ion battery with 3800mah capacity and USB rechargeable lithium USB battery for toy keyboard
Aliexpress UK
Aa3v6 lithium battery 1782078 --- compatible with garage door sensor.
eBay
Soshine 1.5V AA Lithium Rechargeable Battery with Charger 1.5V 2A 3300mwh Lithium Li-ion Battery for Toys Remote Control Camera
Aliexpress UK
Xeno Lithium Battery. Dated: 2029.
eBay
Soshine 3.7V 350mAh 10440 Lithium Batteries AAA Rechargeable Battery and NiMH AA AAA LiFePO4 Li-ion 14500 10440 Battery Charger
Aliexpress UK
Also Known As: 1/2 AA,R6 ,LS-14250, L14250. EVE Lithium Battery.
eBay
3.7V 14500 800mAh Li-ion Battery ICR14500 Welded Joint Rechargeable Lithium Batteries for Led Flashlight Headlight AA Battery
Aliexpress UK
Nothing outlasts Energizer Ultimate Lithium AA batteries. Lasts up to 20% longer in toys versus Energizer MAX batteries. 25% lighter than standard alkaline. Leak-resistant construction.
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Soshine AA 14500 Lithium Battery 3.7 900mAh Rechargeable Battery and 14500 10440 Li-ion LiFePO4 Rechargeable Battery Charger
Aliexpress UK
Energizer Ultimate Lithium AA Batteries 10 Pack
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1/2/4PC 7.4V 1000mAh Building Block Lithium Battery Box Compatible With Legoeds AA Battery Box 8883 Power Supply for Power Motor
Aliexpress UK
Capacity: 3000mAh. AA Lithium Batteries. Durable rainbow shell, the higher intensity and the more stable materials of gasket which will effectively avoid leakage when the batteries under high temperature and high humidity.
eBay
2-20pcs 1.5v AA Rechargeable Battery Li-ion 2600mWh 1.5 Volt Lithium Liion Li ion AA 2A Batteries for Toys Camera Flashlight
Aliexpress UK
Superior performance compared to alkaline AA batteries and Ni-MH AA batteries.
eBay
MATOV Li-ion AAA and AA Rechargeable Batteries USB Lithium-ion 3400mWh 1.5V AA Rechargeable Batteries+1100mWh 1.5V AAA Battery
Aliexpress UK