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Voltage check

Joined
Mar 8, 2021
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Age
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Hello. I've been checking the battery voltage with the control panel, but would like to check it with a voltmeter. I am just guessing the side with only a horizontal contact is negative. On both (drained) batteries, one of the round holes measures 7 volts, the other 3 holes read nothing. But I don't even know what that means, since I thought they were all supposed to be equal and 3-something. Thank you for answering this newbie question.
 
Hi.
Welcome on the forum.
You can check connections in this discussion : H battery terminal diagram
Positive is the horizontal terminal on right side near vertical contact.
Left horizontal and the 3 round spots are the negative of each cell.
You should measure around 3,5~3,7 V for each cell on a drained battery, and 4,2V for each cell on a fully charged battery.
To avoid damage, Lipo batteries should never be drained under 3,3V per cell.
Hope this can help.
 
Attached is a newer version of the one @Pier2162 linked to.
 

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  • Power4 battery terminals.pdf
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Hi.
Welcome on the forum.
You can check connections in this discussion : H battery terminal diagram
Positive is the horizontal terminal on right side near vertical contact.
Left horizontal and the 3 round spots are the negative of each cell.
You should measure around 3,5~3,7 V for each cell on a drained battery, and 4,2V for each cell on a fully charged battery.
To avoid damage, Lipo batteries should never be drained under 3,3V per cell.
Hope this can help.

Hi.
Welcome on the forum.
You can check connections in this discussion : H battery terminal diagram
Positive is the horizontal terminal on right side near vertical contact.
Left horizontal and the 3 round spots are the negative of each cell.
You should measure around 3,5~3,7 V for each cell on a drained battery, and 4,2V for each cell on a fully charged battery.
To avoid damage, Lipo batteries should never be drained under 3,3V per cell.
Hope this can help.
Thank you! That's exactly what I was looking for.
 
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