9
APPENDIX A ESTIMATING BATTERY CHARGE TIME - VENT CAP BATTERIES
For batteries with removable vent caps fill the top of each battery cell with distilled water to the level recom-
mended by the battery manufacturer, but do not overfill. To calculate the approximate charging time required to
fully charge a battery, it is necessary to determine the specific gravity (or percent of battery charge) using a
hydrometer. Use this technique if battery vent caps can be removed. Check each cell. If there is one cell with a
very low specific gravity compared to the other cells, there is probably a shorted cell in the battery. Replace the
battery.
The following chart converts hydrometer readings into percent of charge values.
S
PECIFIC GRAVITY PERCENT OF CHARGE PERCENT OF CHARGE NEEDED
(HYDROMETER READING)IN BATTERY BY BATTERY
1.265 .....................................................100% ................................. 0%
1.225 ......................................................75% ................................. 25%
1.190 ......................................................50% ................................. 50%
1.155 ......................................................25% ................................. 75%
1.120 .......................................................0% ................................. 100%
Refer to the chart below for approximate charging times.
CHARGER SWITCH SETTING % BATTERY CHARGE:
75% 50% 25% 0%
2 AMPS/12 VOLTS (AUTOMATIC)...........8.5 HRS ....... 16 HRS ........ 25 HRS ........ 31 HRS
6 AMPS/12 VOLTS (AUTOMATIC)...........3.3 HRS ....... 6 HRS .......... 10 HRS ........ 12 HRS
APPENDIX B – SPECIFICATIONS
Height ............................................................................................. 4.5 inches (11.43 cm)
Width ............................................................................................. 7.5 inches (19.05 cm)
Depth.............................................................................................. 5.1 inches (12.95 cm)
Weight ............................................................................................ 5 lbs (2.26 kg)
Input voltage.................................................................................... 120 VAC 60 Hz, 1.3 amperes.
Convenience features ....................................................................... Handle
Reverse Connection Indicator ............................................................ Red LED
Charge Status Indicator .................................................................... 3 colors, Yellow, Red, Green