February 25, 2021, 5:19am
I have an unusual issue with my Backfire G2Black,
I swapped the battery out with a direct replacement wowgo v3 10s2p 40T 8ah battery a few months ago and its been great with much longer range.
last week though after i ride 6miles / 10kms i still have half battery left and then the board turns off. Controller is charged too btw.
Im not sure where to start looking??
Any advice is much appriciated,
February 25, 2021, 10:21am
If you are going by the indicator on your remote, start with measuring the battery voltage to see where it’s at.
Could be one or two bad cells dragging down the pack voltage? Have you measured the voltage of each cell to see if they are staying balanced?
Definitely probably most likely a couple bad cells or possibly a broken weld on a ppack. Obviously without seeing it can’t say for sure. Welcome to the forum. What’s your favorite shape?
Apologies late reply I’ve been away for a few weeks, so I run the board until it turned off and the controller displays 25% battery left, and the battery reads 32v.
Is that the correct shut off voltage?
I hope its not a fauilty cell, the battery pack is a heat wrapped wowgo battery pack only about 30 charges old,
thanks for the advice though mate
Assuming it’s a 10s that seems reasonable. Would keep them min. around 3V a cell, so you would have 2V room more
I might go down the custom route with this board later on but its my ride to work every day so have just bought a Wowgo3 with the 8a/h battery so when that gets here i’ll try check this battery,
Cheers for the help guys!
Was previous battery exactly the same? Did you check on VESC tool if values are good for battery cuttoff?