EBP-10Nxi : 7.2volt 1650mAh rechargeable NiMH replacement insert - goes inside ALINCO EBP-10N battery pack. Provides Extra Long-Life when properly re-charged. Specs: 7.2 volt 1650mAh. Note: Your battery pack will need to be dis-assembled, this insert will need to be soldered-connected into place, and the battery housing will then need to be re-assembled. Hint: under the label of your EBP-10N battery pack, there is a screw. Unscrew it, and the case opens easily for rebuilding.