Some 7100 mAH batteries will work in the MagEx as well. One of those is linked below, as well as two 6200 mAH batteries. Only one of the 7100 mAH ba...

It is currently the TW5351. This replaces the TW5341 which is now obsolete. Keep in mind that the G-864 GPS is not an off the shelf Tallysman GPS. ...

As of 08/2023 these are good batteries to use (links are to USA Amazon site): OVONIC 3s Lipo Battery 35C Gens ace 3S LiPo Battery 11.1V 2200mAh 35...