A BP100 battery pack can provide the ability to operate the A329S in "Low Power Impact Detection" [LPID] parking mode for up to 9 days based on my previous power consumption tests for the A329S 3-Channel dash camera.
Parking modes typically have two "states" of operation, "recording" or "monitoring" [I used "waiting" in my older power consumption charts]. A parking mode is "recording" only when it is creating video file(s) based on the logic for that parking mode. The A329S "Time-Lapse" and "Low Bitrate" record video file(s) on a continuous basis. The A329S "Auto Event Detection" [AED] and LPID primarily monitor for triggering event(s) and then start recording video file(s) when a qualifying triggering event takes place. Since AED parking mode creates buffered recordings [15 seconds before / 30 seconds after], it consumes more power to monitor and fill a memory buffer waiting for a triggering event to occur.
If you look at my post in my A329S review thread [
VIOFO A329S - Testing/Review - RCG - Post 208], you will see various parking mode time estimates based on dash camera battery pack capacity. Depending on the health and charge level of your vehicle's battery, you might be able to sustain a 48 hour LPID or Hybrid parking mode configuration using your vehicle's battery. The power draw of the A329S while in LPID is quite low for a VIOFO dash camera. That greatly extends the amount of time the A329S can monitor your vehicle waiting for a qualifying impact event to start recording video file(s). If you use the hybrid parking mode option for the A329S, you need to decide how long [cut-off timer] and/or at what voltage level [cut-off voltage when used with a HK6 hardwire kit] you want the "standard" parking mode [AED, Time-Lapse, Low Bitrate] to operate before switching over to LPID parking mode to greatly reduce the power consumption level while it monitors for impact events.
The A229 Pro dash camera only provides the "standard" parking modes [AED, Time-Lapse, Low Bitrate] which consume a lot more power than the A329S LPID parking mode. Depending on how many cameras/channels your A229 Pro dash camera has, that will impact how long the A229 Pro will operate in one of the "standard" parking modes [14 hours 3-channel up to 32 hours for a 1-channel] when powered by a BP100 battery pack. If you look at the 96 Wh parking mode time estimates that I have in my A229 Pro review thread [
VIOFO A229 Pro - Testing / Review - RCG - Post 3], you'll get a general idea of the best possible parking mode operating time for that dash camera. Those time estimates assume you can use the full capacity of the battery pack for parking mode operations. The low voltage cutoff in the VIOFO hardwire kit will turn off the power to the dash camera when the battery pack supplied voltage reaches the minimum voltage setting [11.8V being the lowest setting]. That leaves some power still in the battery pack unused. The BP100 does come with a output power cable that does not have a low voltage cutoff feature allowing the battery pack to provide a bit more power until the BP100 decides to turn off the power to the 12V power output port. There are ways to obtain a HK4 or HK6 hardwire kit from VIOFO [VIOFO support request] that have been modified so that a low voltage cutoff setting of 12.4V on the hardwire kit itself will disable the low voltage cutoff feature of the hardwire kit module.
I hope something in this post helps you!