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Battery won't charge/hold a charge

If the battery will not charge - or will not hold a charge - it is damaged and must be replaced. 

Common causes of this are:

Leaving the LiPo battery plugged into the main drive unit when not in use is not recommended. The battery may continue to drain - and if the voltage drops below the minimum voltage this will permanently damage the battery. This would not be covered under warranty, so to protect your investment ALWAYS disconnect the battery plug from the drive when not in use.

Using the LiPo battery with an imbalanced voltage between the internal cells in the LiPo battery will permanently damage the battery.

Therefore it is very important to fully charge the LiPo battery before use - EACH AND EVERY TIME - including charging it to FULL before using the battery the FIRST TIME out of the box. Note: you can stop charging before it reaches full and continue charging later - as long as you don't USE it until it has been fully charged. 

The charger is programmed to charge the battery cells evenly - at the end of the charging process the charger will verify that each cell is balanced and indicate this balanced state by showing all three LED lights green if using the B3Pro charger - or by alternating between "FUL" & the voltage readout in the display window of the HotRC charger.

You battery is fully charged and balanced if:

All three LED lights turn green (B3Pro charger)






Digital display alternates between "FUL" & max voltage (HotRC charger)






You will know the battery is damaged when any of the following occur:

  • The battery will not take a charge (the charger readout may just show 000 or nothing at all)
  • The battery is swollen.
  • The battery will not hold a charge. 
  • The battery will not power the drive.

Always charge the battery inside a fireproof container such as a battery charging bag

IMPORTANT: Always charge to "FUL" before use to assure proper balance of all cells inside the battery. 

If the battery is used before it reaches FUL - this will permanently damage the battery causing it to stop taking and/or holding a charge.

Note: you can stop charging before it reaches full and continue charging later - as long as you don't USE it until it has been fully charged. 

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