HEMACOOL
TM
Model HMC-MIL-1 Operations Manual August 2003
Energy Storage Technologies, Inc.
Dayton, Ohio 45459
25
Check For Battery Terminal Corrosion
If the unit is in a humid or hot environment, check for battery terminal corrosion once a
month. It the unit has symptoms of poor battery performance (short run-time on
batteries), check for battery terminal corrosion.
To check for battery terminal corrosion, open the unit’s Cable and Manual Storage
compartment lid (
Fig. 4,
page 7) and use a # 2 Philips head screwdriver to remove the
compartment liner (
Fig. 5
and
6,
page 8). Looking down into the box, the battery
terminals are visible (see
Fig.
15
).
Fig. 15
Battery terminal locations
Keep Batteries Charged
The gel cell batteries in this unit require a full charge to maintain their full capacity.
Allowing a discharged battery to sit without recharging begins to deteriorate its capacity
to hold a new charge in as little as a few hours. When the unit is plugged into AC power
or into a solar panel array, its batteries will charge.
Connecting auxiliary power or an
external battery to the unit does not recharge the unit’s internal batteries.
Batteries
that are fully discharged may require as much as 24 hours to fully recharge on AC power,
and as much as four days on a solar array with good light conditions. After allowing time
to recharge the batteries, you should see 14—14.5 VDC on the unit’s display (
Fig. 9
and
