Heath Consultants Remote Methane Leak Detector Intrinsically Safe (RMLD-I) - Manual (Page 12)

Chapter II
Battery Charging
Rechargeable Battery
The RMLD-IS has an internal, rechargeable Lithium-ion battery that provides the main
power to the instrument. This battery is designed to provide eight (8) hours of operating
time when fully charged. The battery must be recharged between uses to assure no
interruption in use. The display features a battery life remaining indicator. Accuracy of
this indicator is within 20% of the actual capacity. This indicator should be used only as
a reference. Always start the day with a full charge to ensure a full day’s use.
Fig. 2-1
**Note**
I order to obtain full battery capacity, charge the battery when the ambient temperature is
above 50º F (10º C) and below 85
o F (30 o C). When Storing the instrument or the battery
for more than a week, leave the battery charged to at least 40% (3-4 bars) and store at
room temperature of 60-70
o F with less than 70% relative humidity.
**Note**
The prolonged non-use of a battery inside or outside the instrument can cause the
battery’s chemistry to be irreversibly damaged leading to permanent failure of the
battery. It is recommended to have the battery go through a charge check once every
month. Battery should be checked to see if it still has at least 40% charge (3-4 bars). The
Battery charge indicator
Battery charge indicator light
101296-0 RMLD IS MANUAL REV J
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