Remove 'Super Rechargeable Battery' or give it some new functions

[pooliver]

I suggest remove Super Rechargeable Battery from item mall. Both Super Rechargeable Battery and Rechargeable Battery are able to recharge a lv60~80 0/3500 coral from empty to full, but Super Rechargeable Battery costs 2 rums/1pc and Rechargeable Battery costs 1 rum/2pc. That's a 4x price for same effect. New players that doesn't know the difference are simply wasting more rums for nothing. It makes no sense for both items to keep both items in mall.
One alternative solution is make Super Rechargeable Battery different: make it usable anywhere by double clicking it and then click the coral without need to head to spring town, while keep Rechargeable Battery the same. That'll make slightly more sense for this battery to cost more.
This is not something huge, but I think it's simply bad to put an item on mall that makes no sense