Need 2700mAh/10.26WH D-Link M803 Battery? This M803 battery 100% compatible with D-Link Wi-Fi A610 4G. The battery is up to standard and fully compatible with original specifications. We offer 12 months warranty on our all batteries! During this period, if your battery fails, we will replace your M803 battery with a new one. All our batteries are certified by CE, UL, ROHS, ISO9001/9002 as safe products.