Balancing and charging 2 packs with one balancer and charger

[Superbasher]

Hi everyone,
I've got 2 x 2 cell packs which I would like to charge and balance from one charger to save time (as a 4s). Is this possible or will it damage my packs? I have got a series connector to charge them at the same time (connected in series for running) but is there a balancer lead for a Hyperion LBA10 that has a lead for each pack, that would register on the charger as a 4s?
Forgive me if I'm being unclear, it is the morning
Cheers,
Matt