Ultimate Dash Cam Battery Pack Comparison

GPak said:
Oh yeah, this pair is different/better! With two-stage charging that tapers off towards the end.
And the 70mAh battery (left) initially charges at over 1C - which is exactly what @Nigel wanted to see, so that charging would go faster in the first 40 minutes.
In addition, 70mai has a visible soft start.
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You mean 70 Mai not 70mAh!
 
SafeDriveSolutions said:
Behind the scenes of testing and explaining how we can test this much current.

How long does it take to charge a dash camera battery pack?
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Don't Canadian washing dryers run on 240 Volts, so when converted to 14V, a 30A circuit can give 514 Amps, which is more than plenty?

Thanks for the videos, they are not too boring!
 
These numbers are lining up with what I’ve seen. Bummer that BBMC no longer sells the BI-750. You could get a high current cable for it that was designed to connect it directly to the car battery, and it could charge even faster.

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Nigel said:
Don't Canadian washing dryers run on 240 Volts, so when converted to 14V, a 30A circuit can give 514 Amps, which is more than plenty?

Thanks for the videos, they are not too boring!
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A 30 amp circuit provides 30 amps, and when on a 30 amp breaker, that is all it will provide.
 
SafeDriveSolutions said:
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It appears on that video that the %charged on the app doesn't match with reality, which it won't until the battery learns what its capacity is, and for that it needs a small number of full charge/discharge cycles.

You got more power into it than it thought it had capacity for. Possibly the battery hasn't balanced its cells yet, ideally for a new battery, you would leave these batteries charging for a couple of days before doing a capacity test, so that they can properly balance their cells, and probably find a little extra capacity, and then calibrate their %charged meters to their actual capacity. Not asking you to do it all again, just commenting for future tests people might do.
 
lufa6977 said:
A 30 amp circuit provides 30 amps, and when on a 30 amp breaker, that is all it will provide.
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A 30 amp 240 volt circuit will provide 30 * 240 = 7200 watts, convert that to 14 volts and you have 7200 / 14 = 514 amps available, and probably some molten cable if you try to use it all!
 
Nigel said:
A 30 amp 240 volt circuit will provide 30 * 240 = 7200 watts, convert that to 14 volts and you have 7200 / 14 = 514 amps available, and probably some molten cable if you try to use it all!
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It is 115 volt not 240
 
Vortex Radar said:
These numbers are lining up with what I’ve seen. Bummer that BBMC no longer sells the BI-750. You could get a high current cable for it that was designed to connect it directly to the car battery, and it could charge even faster.

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So there could be some arguement that I could set the powercell 8 for quicker charging. I believe they have a 9amp setting. But i do believe most customers will charge it standard charging amperage
 
New packs should ideally have their initial charge at 0.5C, and of course, the proper voltage. The battery can be cycled 2 or 3 times this way. This process is time-consuming, and most users are not willing to wait to install the pack in their car. These batteries should never be on a float or trickle charge.
 
GPak said:
Fluctuations are expected.
This is actually a single-stage "forced" charging method.

With two-stage charging, the current remains ±constant at the maximum level until about ±80% of the charge, and then slowly decreases to ±a small fraction of the maximum value until the battery reaches the maximum charging voltage, at which point charging stops.

Thanks for testing @SafeDriveSolutions , you are the best! 👍
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Cell phones are a good example of a product offering two stage charging method to extend battery life. After 80% they will charge slower, but also it's recommended to never really charge above 80% anyway. Charging a battery to full capacity and fully discharging shortens the number of cycles and life of the battery itself, too.
 
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SafeDriveSolutions said:
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In isolation the charging time bar chart can be a bit misleading because the IROAD batteries have higher capacities than the others. Across the test products it looks like the charge time is roughly proportional to the capacity.

I'm curious how much longer a battery takes to charge if it has a dashcam connected to the output?
 
lufa6977 said:
@SafeDriveSolutions

In terms of appearance, feel, construction quality, and wiring, how do these aspects compare to one another?
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For that I have a full teardown of all the connections, connectors and superzoom of all these battery packs. i am liking the new camera and that will be in the full video
 
TonyM said:
In isolation the charging time bar chart can be a bit misleading because the IROAD batteries have higher capacities than the others. Across the test products it looks like the charge time is roughly proportional to the capacity.

I'm curious how much longer a battery takes to charge if it has a dashcam connected to the output?
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probably minutes. These battery packs are charging at 7 to 9 amps. dash camera is pulling 0.25 to 0.5 of an amp. So not much difference
 
TonyM said:
In isolation the charging time bar chart can be a bit misleading because the IROAD batteries have higher capacities than the others
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Yes higher capacity but still customers need to have realistic charge times. the only thing i thought was weird so far is the IVOLT Xtra from Thinkware stating it was fully charged on the app yet was still charging as though it needed to be charged.
Every other battery pack seems to be operating like normal. But hence why I am not 100% fan of the apps. I feel they report a lot of stuff wrong.
 
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