Universal Portable USB Emergency 2 AA Battery Extender Charger Power Bank Supply Box,Default NO5249

Features:

This AA Battery Extender has the power you need to keep your Smartphone running during

your air travel, camping, road trips or anywhere else you could face the prospect of a dead battery

High power efficent regulated output for Power and Charging your Smartphone

Mechanical safety design protecting your Smartphone from insertion of batteries with reversed polarity

LED power indicator

Pocket-sized for easy carrying

Specifications:

Quantity: 1pc

Uses two AA batteries (batteries not included)

Size: approx. 8 x 3.3 x 2.1cm

Built-in DC-DC boost circuit, conversion efficiency is 88%~~93%

Input Voltage: 2.0-3.0V

Output Voltage: 5.0V

Output current: up to 700mA

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