Material: made of ABS plastic for durability and long life.
External battery packs with 2.5 mm jacks are only available for some safes, gun safes, and key safes with external battery power.
It holds four AA-sized standard alkaline or rechargeable batteries.
If the battery fails, the safe can be opened by inserting an external battery pack into the module on the safe.
The external battery pack is a regular AA battery pack, in series, with cover and switch for easy battery installation, perfect for your DIY projects.

It can hold 4 AA size standard alkaline or rechargeable batteries.

It can be used as a perfect external power source. Easy to control power supply with 2.5mm jack.

In the event of a battery failure, the safe can be used by inserting this external battery pack into the module on the safe.

The external battery pack with 2.5mm jack is only suitable for some safes, gun safes, key safes with external battery power.

The external battery pack is a regular AA battery box in series with lid and switch for easy battery installation, perfect for your DIY projects.

Suitable for DIY and maintenance of all kinds of DC devices, toys, LED lighting power supply, low voltage electrical devices, etc.

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