Compared to alkaline batteries lithium provides great energy density. Go for EBL lithium AA batteries if you concerned and want to lighter weight and standard size! Capacity: AA 3000mAh.
eBay
3.7V 10000mAh 1260110 Polymer Lithium Battery/lithium Ion Battery with Protection Board for Power Bank GPS 100% Real Capacity
Aliexpress UK
Specification: Chemistry: LiFePO4 Model No.: TWLFP12120 12.8V 120Ah Condition: Brand new Capacity:120Ah Voltage (V): 12.8V WATT-HOUR:1536Wh Charge and discharge parameters: CHARGING VOLTAGE: 14.6V MAX DISCHARGING CURRENT: 100A MAX START-UP CURRENT: 200A 1000ms SHORT-CIRCUIT CURRENT: >200A STD CHARGING CURRENT: 20A MAX CHARGING CURRENT: 45A CHARGE TEMPERTURE: 0℃ to 50℃ DISCHARGE TEMPERTURE: -20℃ to 60℃ Instructions for use and storage: Store at ≥75% capacity and recharge every 3months Only use the lithium battery charger Do not reverse or short-circuit Do not disassemble Do not drop into the water or close to the fire Do not hit, pierce or burn Features: BUILT TO LAST: Our 12.8V 120Ah LiFePO4 Batteries live more than 4000 cycles at 100% depth of discharge or 8000 cycles at 50%.
eBay
3.7V 2000mAh 103450 Polymer Lithium Battery Lithium Ion Battery For Power Bank GPS 100% Real Capacity
Aliexpress UK
Our 280Ah LiFePO4 battery weight is 61.7 lbs, only 1/3 of Lead-Acid battery. More convenient carrying, any mount directions, no leakage risk, safer usage. Also you'll be able to keep a close eye on the battery remaining working life.
eBay
3.7V 5000mAh 955565 Polymer Lithium Battery Lithium Ion Battery For Power Bank GPS 100% Real Capacity
Aliexpress UK
Our LiFePO4 batteries have a built-in BMS protection plate, which protects the battery. Our LiFePO4 batteries casing is made of ABS plastic, insulated material will not leakage, can reach level IP 55 dustproof and waterproof.
eBay
5Pcs 3.7V 2000mAh 103450 Polymer Lithium Battery Lithium Ion Battery For Power Bank GPS 100% Real Capacity
Aliexpress UK
Our 100ah LiFePO4 battery weight is 22.93 lbs, only 1/3 of Lead-Acid battery. More convenient carrying, any mount directions, no leakage risk, safer usage. Also you'll be able to keep a close eye on the battery remaining working life.
eBay
10Pcs 3.7V 2000mAh 103450 Polymer Lithium Battery Lithium Ion Battery For Power Bank GPS 100% Real Capacity
Aliexpress UK
With an expiry date of 12/48, you can be assured of their longevity and performance.
eBay
1-20pcs brand new 18650 3200mAh rechargeable battery lithium battery 18650MH1 3.7V high-capacity battery Flashlight batteries
Aliexpress UK
This pack of 10 Energizer batteries is a reliable source of power for your AA/FR6 lithium devices. With an expiry date of 12/48, you can be assured of their longevity and performance. The pack comes from a well-known brand, Energizer, and is made of high-quality lithium chemical composition. Get your hands on this pack of 10 AA batteries and enjoy a long-lasting power source for your devices. . 100% POSITIVE FEEDBACK . UK DELIVERY ONLY (Packaged in box)
eBay
1PCS CR2032W CR2032 with line 1.25 plug BIOS coms Button Cell Battery lithium battery for Notebook motherboard
Aliexpress UK
CR2032, CR2016, CR2025, CR2450, CR1220, CR1620, CR1616 Batteries. Keep clean; wipe the cell with dry cloth. Keep out of the reach of the children. DL1620, ECR1620, BR1620, 280-208, DL1620B, BR1620-1W, CR1620-1W.
eBay
6s4p 24V 50Ah 18650 Battery Lithium Battery 25.2v 50000mAh Moped Li Ion Battery Pack Rechargeable Long Lasting
Aliexpress UK