XS9900DXS9900D Xcruiser Satellite-Meter ENG- 14Lithium-ions-batteryExplosion danger!Never the two poles (+ and -) connect with each other!Attention!Storing or operating accumulator no more than 40°C.Not burning or damaging accumulator.Not taking accumulator to contact with water.Charging the batteryThe maximum battery charging time is approximately 12 hours.A charging circuit in the measuring device provides an optimal charge of the battery. The device is charged if it is switchedoff.� Turn the device off, if it is not already off.� Connect the Euro-main cable with the external AC adapter.� Connect the external AC adapter to the power grid.� Connect the AC adapter to the low-voltage port at the bottom.� The battery is charged as soon as you connect the AC adapter to the meter