interrupting a LiPo balancing circuit
Balancing requires shunting the current of fully charged cells while allowing charge to complete on the undercharged cells.

In-expensive bypass shunt types handle about &lt;&lt;10% cell capacity inbalance so that the 10% of the charge power can be reasonably dissipated of each cell charge power being pumped.  With individual cell monitoring, to limit cell voltage to 4.2V then when charger is switched off the cell voltage decays to 3.8V or 10% below peak charge the balancer should not be loading any individual cell.

A smart balance charger uses Sendyne's novel patented method half-bridge switched inductor method, current can be more efficiently bypass the fully charged cells.



Look for detailed specs on off-the-shelf balancers, rather than guess what "some Ebay offering" is selling without specs. Ask the supplier.