iCharger Duo Balance Circuitry Repair Service

A pretty well known issue on the iCharger Duos (406 Duo, 308 Duo, 4010 Duo) is that balancing will never complete and the charge cycle never completes (or takes an extremely long time).  You will typically notice a very low actual charge rate (usually less than 1A, down to a few dozen mA after an extended time) and one of the cells showing as being discharged at full power.

This is normally caused by failure of a transistor in the balancing circuitry of the charger.  Failure can be caused simply by age, or by a short circuit or other fault on the balance port(s).  The failed transistor means that even though it is telling the cell to discharge at full power, the transistor is not working and thus no discharging is actually occurring.  Since the charger is trying to also balance the cells, if it's unable to discharge a cell the charge cycle will never end (unless you have a charge time limit set up).

Instructions:
If you have multiple items to send in at once, set the quantity of the purchase to the number of items you are sending.  Once your order is placed, please ship the item(s) to the following address:

KC3D LLC Attn: Service
8450 NW Prairie View Rd #1391
Kansas City, MO 64153
United States

If possible, print out your order receipt and put it inside your package.  Please also reach out to us to let us know what you are sending, the tracking information (if available), and any other info you think we should know.

Once the repair is completed, it will be shipped back to you and the order marked as fulfilled.  If for some reason it is not repairable (e.g. due to unrelated damage), you will be refunded minus shipping cost, contacted, and the item will be returned to you.

Note:
Shipping is marked up to include insurance for the full dollar value of items when they're shipped back to you.

This service will most likely void your manufacturer's warranty.