This replacement battery for the Dual Electronics XGPS160 portable GPS receiver is an exact fit for the XGPS160 device at a fraction of the cost. Factory batteries are very expensive, are not easy to purchase, and don't last as long as the DroMight™ XGPS160 replacement battery. If your Dual Electronics XGPS160 multipurpose GPS Receiver's battery is no longer working, can't be charged, or is losing charge quickly, purchase the DroMight™ XGPS160 replacement lithium polymer ion battery and your XGPS160 will be working like new again. This battery has a 1400mAh power rating, which is far in excess of other batteries on the market.