Trimble ACCAA-112 Lithium-Ion rechargeable battery

Ranger 3 Li-Ion Battery A rechargeable lithium-ion battery enables you to be prepared for those times when you can't recharge and need to keep working.
You may also want the spare battery charger (ACCAA-666) to recharge a second battery module while your primary battery is recharging in the Ranger 3 handheld computer.
This is a standard accessory included with each Ranger 3 computer. It is also a consumable accessory that does wear out under normal usage.