EagTac SX25L2 / SX30L2 R37 5000mAh Battery Pack

EagTac~EagleTac SX25L2 R37

Replacement/Spare SX25L2 / SX25LC2 Turbo / SX30LC2 / SX30L2-R / SX30L2-DR etc R37 5000mAh Battery Pack...

or, for those wanting a little more runtime = 11% more mAh capacity compared to the R33.
(ie. This is the newest upgrade version to the R33 pack)