... result value exceeding the limit. l Battery information indicates the rest capacity of the battery and the charge status.l User ... integrated, convenient for in field printing. l NI-MH rechargeable battery as the power source. Charge circuit integrated inside the instrument ... 5±0.5)mm, diameter is 30mml Battery pack: 6V NI-MHl Battery charger: 9V/500mAl Continuous working period:about 150 hours(With ...