Kastar 4-Pack 7.4V 5800mAh Lithium-Ion Batteries with LTD2 USB Dual Charger — Compatible with Leica Survey Equipment, Total Station, GNSS Receiver, GPS900, GPS1200, GRX1200, GX1200, VIA, Piper 100, Piper 200, RX1200, RX900, SR20

Includes four Lithium-Ion batteries (7.4V, 5800mAh) plus the LTD2 USB dual charger designed for Leica survey instruments and compatible models listed. Charger can power two batteries at once and features a swappable charging plate to accept different battery types. Compact and portable for field use. Charger specifications — Input: 5V 2-3A 15W; Output: 8.4V 800mA(x1) 800mA(x2). An intelligent LED USB dual charger provides visible charging status and indicates battery capacity. Multiple input options are supported: Micro-USB and Type-C; a Micro USB cable is included.