VIOFO BP-100 / EP-100 Dash Camera Battery Packs - RCG

rcg530

rcg530

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Since others have been given permission to start publicly discussing some of the test results regarding the brand new VIOFO BP-100 [main battery pack] and the EP-100 [expansion battery pack], I'll start posting info as I have time to work on testing that product.

This is a pre-production product!!! Keep that in mind. Things may drastically change between what version of the product I have and the firmware used in the BP-100 and when it is released as a production product.

I've performed a few charge / discharge tests with the BP-100 and EP-100 connected together. I don't have as detailed data for those test runs, but I do have monitoring camera footage of the tests.

My VIOFO BP-100 [no EP-100 connected] test times [so far] have been with a VIOFO A139 3CH dash camera connected to the BP-100 using the 12V-to-5V power adapter provided with the BP-100 [no low voltage cutoff]. The DC power supply remained on during the entire discharge test. The ACC power into the BP-100 was turned off for the discharge test. This is to simulate being connected to vehicle's battery while the BP-100 is powering the dash camera in parking mode.

Discharge Test: BP-100 fully charged, A139 Pro 3CH in Low Bitrate Parking Mode

20250713 19:25: BP-100 top off charge perform before start of discharge test
20250713 19:46: Start - Turn off ACC input to BP-100, A139 Pro 3CH starts low bitrate parking mode
20250714 06:51: Finish - BP-100 turns off due to low battery pack voltage

Total time: 11 hours 26 minutes

The voltage data logger that I had monitoring the 12V output voltage from the BP-100 to the A139 Pro 3CH:

The BP-100 output voltage just as it turned off was 10.11V - having a light that fully illuminates the data logger's LCD screen, also causes a reflection/glare making it so the monitoring camera cannot record its contents. 🙂
1752782051458.webp


1752782129296.webp


BP-100 [no EP-100 connected] charge test run 20250709:

Charge Test: BP-100 fully discharged by previous discharge test - A139 Pro 3CH as the "load"
20250709 07:26:15: Start - Turned on ACC input to BP-100, DC power supply set to 14.2V
20250709 07:26:19: BP-100 beeped twice and powered on by this point, Amp draw 134 mA
20250709 07:26:22: BP-100 12V port provides the first non-zero voltage 12.76V
20250709 07:26:31: BP-100 amp draw rises to 6.333 Amps
20250709 07:26:41: A139 Pro 3CH boots, BP-100 amp draw 6.854 Amps, 12V port voltage 12.73V [now that an active load is present]
20250709 07:26:59: Connected VIOFO battery app, shows 1% charge level, BP-100 amp draw 7.151 Amps, 12V port voltage 12.72V
20250709 07:41:17: App reports 25% charge level, BP-100 amp draw 7.640 Amps, 12V port voltage 13.30V
20250709 07:57:17: App reports 50% charge level, BP-100 amp draw 8.023 Amps, 12V port voltage 13.44V
20250709 08:14:18: App reports 75% charge level, BP-100 amp draw 8.087 Amps, 12V port voltage 13.54V
20250709 08:30:18: App reports 99% charge level, BP-100 amp draw 8.169 Amps, 12V port voltage 13.74V
20250709 08:31:45: App reports 99% charge level, BP-100 amp draw 8.292 Amps [Max Amp Draw], 12V port voltage 13.80V
20250709 08:33:45: App reports 99% charge level, BP-100 amp draw 7.488 Amps, 12V port voltage 13.81V
20250709 08:35:45: App reports 99% charge level, BP-100 amp draw 6.672 Amps, 12V port voltage 13.81V
20250709 08:37:45: App reports 99% charge level, BP-100 amp draw 5.425 Amps, 12V port voltage 13.81V
20250709 08:38:00: App reports 100% charge level, BP-100 amp draw 5.228 Amps, 12V port voltage 13.81V
20250709 08:40:00: App reports 100% charge level, BP-100 amp draw 3.429 Amps, 12V port voltage 13.82V
20250709 08:42:00: App reports 100% charge level, BP-100 amp draw 1.283 Amps, 12V port voltage 13.82V
20250709 08:42:43: App reports 100% charge level, BP-100 amp draw 0.659 Amps [pass through amp load of dash camera], 12V port voltage 13.83V
20250709 08:47:55: App reports 100% charge level, BP-100 amp draw jumps to 5.801 Amps and it ramps down over the next 4 seconds, 12V port voltage 13.83V
20250709 08:47:59: App reports 100% charge level, BP-100 amp drops back to pass through load of 0.682 Amps, 12V port voltage 13.83V
20250709 08:52:55: App reports 100% charge level, BP-100 amp draw 0.670 Amps, 12V port voltage 13.83V - Test finished - Monitoring camera turned off

1752785004631.webp
 
rcg530 said:
The BP-100 output voltage just as it turned off was 10.11V - having a light that fully illuminates the data logger's LCD screen, also causes a reflection/glare making it so the monitoring camera cannot record its contents.
Click to expand...
You always find the most wonderful tools to make our job easier. lol
I don't have that data logger, so I was "stealing" a voltage signal from the unused input/output from the EP100.
I got 10.41V at end of discharge cycle.


Those Wonderful Toys
 
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@rcg530 ... have you opened the BP-100 to see the cell type and configuration? I am curious as well if the cells are tack-welded or pressure-fitted in place.
 
lufa6977 said:
@rcg530 ... have you opened the BP-100 to see the cell type and configuration? I am curious as well if the cells are tack-welded or pressure-fitted in place.
Click to expand...
No, I have not opened the BP-100.
 
rcg530 said:
No, I have not opened the BP-100.
Click to expand...

That part of my mind that likes to tinker with things is curious about the 'innards'. I may purchase a BP-100 when it becomes available and perform a teardown on it.
 
Nigel said:
If that was low bitrate parking mode then it is a BP104 ?
Click to expand...
I'm not sure what you are saying "BP104"? I use a VIOFO A139 Pro 3CH during charge/discharge tests. That's what I used for the "load" when I tested the other dash camera battery packs. I have the A139 Pro configured for low bitrate parking mode during the discharge tests.
 
rcg530 said:
I'm not sure what you are saying "BP104"? I use a VIOFO A139 Pro 3CH during charge/discharge tests. That's what I used for the "load" when I tested the other dash camera battery packs. I have the A139 Pro configured for low bitrate parking mode during the discharge tests.
Click to expand...
Based on the discharge time, and your measurement of A139 low bitrate power consumption, you got 104 Wh out of it, not 100 Wh as the BP100 name suggests. Assuming the power consumption measurement is still valid.
 
rcg530 said:
No, I have not opened the BP-100.
Click to expand...
On the corners there are 4 screws under the small shinny plastic part which is glued. You need to remove only the front screws.
 
Any update on when this battery pack will go on sale? Also what is its compatibility with the HK6 kit for cars that are driven very infrequently?
 
JBrown said:
Any update on when this battery pack will go on sale? Also what is its compatibility with the HK6 kit for cars that are driven very infrequently?
Click to expand...
I have not received any info from VIOFO about the official product release for the BP-100/EP-100 battery packs. Since the SEMA show is in one month, we might hear something by the SEMA show [just guessing].
 
@rcg530 @Chuck McCoy

Re connectors and ports, I don’t know if it’s been listed elsewhere and I haven’t seen, but what do we have…?

– Is the Input MR60 or MR30, I can’t quite tell the sizing..?
– The Ext/In are XT connectors ?
– Output (Dashcam) a 4-pin Molex of some kind..?


Just useful info for potential longer cable lengths….
Thanks!
 
SC@AU said:
@rcg530 @Chuck McCoy

Re connectors and ports, I don’t know if it’s been listed elsewhere and I haven’t seen, but what do we have…?

– Is the Input MR60 or MR30, I can’t quite tell the sizing..?
– The Ext/In are XT connectors ?
– Output (Dashcam) a 4-pin Molex of some kind..?


Just useful info for potential longer cable lengths….
Thanks!
Click to expand...
  • Charging Cable
    • MR60 Female Connector
  • Ext/In Cable
    • XT60 Female Connector
  • 12V Output [Dash Camera] Cable
    • 4-Pin Molex Plastic
      • Molex 43645-0400
    • Terminal Pins - Micro-Fit 3.0 Crimp Terminal, Female [43030 series]
      • 18 AWG wire: 43030-0038
      • 20 AWG to 24 AWG wire: 43030-0001
 
Has anybody tested the BP-100 to see how it performs during cold temperature (32F and below) charging?
I'm not seeing any in the search results.
 
So in summary the battery was not charging at 10F or 14F (which is good) but was able to pass current to the load.
It would be good to see it still not charging at say 30F but that might be tricky without a test chamber.
I wonder when this battery will be available?
 
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