The EXB version of DURALITE batteries does not have a circuit for balancing or low voltage warning. It relies on the charger to do the balancing when being charged.
Lithium-Ion's are available in a 7.4 volt EXB version.
We provide a JST-XH balance tap that will be common with most balance boards that come with the latest chargers.
We also provide an extra test lead that can be used in conjunction with the balance tap as a charge lead if needed. This would eliminate the need to unplug the power lead.
We also have optional balance tap extensions for your convenience. (JST-XH)
The EXB packs are less expensive as they do not require the circuit.