BlackVue B-124E Battery Expansion Pack


Expansion Pack for Extended Recording

Simply Plugs into Primary B-124X Battery Pack

Longest Parking Mode Power Source

Charges while driving

DIY installation into B-124X Battery

Powers Dash Cam while parked

Bluetooth Connectivity

View battery status via Bluetooth App

Up to 50 hrs run time 1-CH Dash Cam

Up to 30 hours run time 2-CH Dash cam

Highest Quality LiFePO4 Battery

12V-24V Compatibility

12 Month Warranty

SKU: 467881 Categories: ,


The BlackVue B-124E Expansion Battery Pack, when paired with the primary B-124X Ultra Battery Pack, is a high capacity system designed to offer the longest parking mode recording times.

Adding the B-124E expansion pack to the B-124X Ultra battery essentially doubles the power and doubles the recording time of your BlackVue Dash cam while parked.

Charging the B-124X + a B-124E expansion via the fusebox is faster (80 min charge time), but if you don’t want to hardwire anything into the fusebox, it can be charged it up via your cig lighter socket (2 hour 30 min charge time).

The BlackVue B-124X Ultra battery + B-124E expansion system is compatible in both 12V and 24V vehicle systems.

The battery charge level can also be checked via the battery bluetooth app.

*The BlackVue B-124E expansion pack cannot be used by itself, only works when connected to primary B-124X Ultra battery


1. If charging the B-124 system through your vehicle cigarette lighter socket, make sure the input power switch is set to “cigarette”

Once the B-124 system is connected to the cigarette lighter socket and operating, never turn the switch to HIGH (9A) during operation. This may cause functional failures, overheating, or damage to the cables and ignition due to overcurrent.

2. If hardwiring the B-124 system into a fusebox to charge, make sure the power switch is set to “hardwire”.