MicroRAE User’s Guide175. Battery ChargingAlways fully charge the battery before using the MicroRAE. Its Li-ion battery is charged byplacing the MicroRAE in its Travel Charger (P/N: M03-3005-000) or Charging Cradle. Contactson the bottom of the instrument meet the Travel Charger’s or Charging Cradle’s contact pins,transferring power.Note: Before attaching the MicroRAE to a charger, visually inspect the contacts to make surethey are clean. If they are not, wipe them with a soft, dry cloth. Do not use solvents or cleaners.WARNINGTo reduce the risk of ignition of hazardous atmospheres, recharge, remove or replace thebattery only in an area known to be non-hazardous!Next, put the plug from the power supply (P/N: 500-0036-102) into the jack on the side of theTravel Charger.Plug the other end of the charger into a power source (AC outlet or mobile power port in avehicle, depending on the model). When power is applied and the MicroRAE’s battery ischarging, the LED glows red. The LED glows green when the battery is fully charged.Note: For mobile charging, only use Automotive Charging Adapter (P/N 003-3004-000) fromRAE Systems.To remove the MicroRAE from the Travel Charger, squeeze the latches on the sides of the TravelCharger and pull it away from the instrument.Align the Travel Charger with the middle of the MicroRAE and press ituntil it is firmly attached.