Hyperion EOS0610i DUO ... NiMH auto-mode ?

[kulangflow]

So, both of my Hyperion chargers (0610i DUO and 1210i) have an Automatic NiMH mode. I'm guessing they just use the packs' resistance to determine the charge rate. Is that right?

I just assembled some sxs 7 cell GP3300 packs from RShack (Green and gold -real GP, not the new crappy replacement cells) and the auto-NiMH mode eventually charges them at up to 8.4A! As I've typically always charged at 1C, this seems a tad frightening to me.

Can I just trust the charger to know that it's okay to charge them at about 2.5C since they're new cells? The older GP3300 packs I have end up charging at a max of 4.5A, which seems significantly more reasonable.

If all else fails, I don't care too much because I mostly run 5s a123 in there anyway. The NiMHs are there for water running purposes.

Anyway. Thoughts? What's the max rate you'd charge new GP3300 cells?

[kulangflow]

Mods, can you please move this to the MaxAmps section. I bought the charger from them, so I probably should have posted this in their section.

Thanks!

[johnrobholmes]

It does automatically charge based on resistance of the cell. You can choose linear mode and break the packs in at .3 amps at first if you wish, and every 10 charges or so to rebalance the pack.

8.4 amps seems high to me, just depends on how fast you want them I guess.

[kulangflow]

Do you think 8.4A will drastically reduce the life of the pack, or just moderately?

Thanks for the response btw. :-)

[aqwut]

8.4A is a bit tough on the packs...