Then if you're willing to go with a single charger instead of spending a big chunk of cash, the newer Hyperion 0720Net3 AD is one to consider. It is AC/DC, has -

"EOS 0720i NET3 AD (ac/dc input)
10.5V~29V DC (20A, 150W max charge)
100V~240V AC (20A, 90W max charge)"

and as far as accuracy - "* 12-Bit Balance Circuit Resolution for superb accuracy".

The discharge specs are 50watts with a max of 5amps. That makes for a relatively fast discharge. Although I prefer to just run a lipo and let the charger charge it back to storage conditions.

Charger specs here - manual is available at bottom of page -

http://media.hyperion.hk/dn/eos/

Several places to buy - on sale here -

http://www.allerc.com/product_info.p...oducts_id=5655


or here -

http://www.amainhobbies.com/product_...er-7S-20A-150W