BlackVue B-124E Ultra Battery Add-On Expansion Pack
Plug in a Power Magic Expansion Battery B-124E (6,600 mAh / 84.5 Wh) to easily double your usage time. When both the Ultra Battery and the Expansion Battery are fully charged, they can provide power for up to 56 hours (based on a single dashcam that consumes 3 Wh). The charging time is approximately 1 hour 40 minutes (cigarette lighter plug) / 60 minutes (Hardwired).
When you add 1 or more expansion batteries please adjust the total available battery capacity using the BlackVue Battery manager app.
Multiple expansion batteries can be connected together in sequence to extend usage time even further. Please note charging time will also increase accordingly.
Battery Capacity
| No. of battery packs | Recommended battery capacity setting |
| 1 Ultra Battery (B-124) | 6,000 mAh |
| 1 Ultra Battery (B-124) + 1 Expansion Battery (B-124E) | 12,600 mAh |
| 1 Ultra Battery (B-124) + 2 Expansion Batteries (B-124E) | 19,200 mAh |
| 1 Ultra Battery (B-124) + 3 Expansion Batteries (B-124E) | 25,800 mAh |
NOTE: A "starter" B-124 Battery Pack (sold separately) is required in order to use the B-124E Expansion Battery Pack.
New OEM equipment by BlackVue. Includes 1-year manufacturer's warranty.
| B-124E | |
| Color / Size / Weight |
Black / 157 mm (W) x 171 mm (L) x 39.5 mm (H) / 1.3 kg |
| Battery Cell Type |
LiFePo4 (Lithium Iron Phosphate) |
| Charging Time |
Cigarette lighter plug (standard 5A charging): Approx. 1 hour 40 mins |
| Hours of Use |
1 (Ultra) + 1 (Expansion): Up to 56 hours in total (based on a single dashcam that consumes 3 Wh) |
| Operating Temperature |
Charging Temperature: 0 °C − 45 °C (32 °F − 113 °F) |
| Capacity |
12.8 V / 6,600 mAh / 84.5 Wh |
| Output Voltage / Current |
11 V – 14.5 V / 2A (max) |
BlackVue B-124E Downloads
User Manual: BlackVue B-124E User Manual (1.4MB PDF)