User Manual
27
GEL BATTERY INSTALLATION & CHARGING
Designed and well-suited for regular cycling as well as float and backup
applications, Rolls sealed OPzV GEL batteries have a low internal resistance
allowing quick recharge and a low self-discharge rate (less than 2% per
month). Rolls OPzV GEL batteries perform well in high cyclic use even under
extreme operating conditions and offer more than 20 year cycle life in float
applications at 25ºC (77ºF).
INSTALLATION
Rolls GEL batteries may be mounted upright or horizontally on the side (longest)
of the battery case. Use caution not to cover valves located on the top of the
batteries when using strapping to secure as damage may occur. Rolls GEL
batteries may not be mounted upside down or horizontally on the end (shortest
side) of the case.
Racking systems are available. Contact your Rolls Battery Distributor or Dealer
for options and availability.
GEL BATTERY CHARGING
Rolls GEL batteries have very similar installation and maintenance requirements
as Rolls sealed AGM product lines, with the exception of unique charge and float
voltages. Although VRLA batteries are sealed, ventilation is still required to avoid
risk of off-gassing and explosion.
GEL CHARGE VOLTAGE QUICK REFERENCE
0ºC (32ºF) 10ºC (50ºF) 20ºC (68ºF) 25ºC (77ºF) 30ºC (86ºF) 40ºC (104ºF)
CHARGE VOLTAGE 2.48 V2.44 V2.40
V2
.35
V2
.32 V
FLOAT VOLTAGE 2.38 V2.34 V2.30
V2
.26
V2
.22 V
CHARGE VOLTAGE 14.88 V 14.64 V 14.44 V 14.12 V 13.92 V
FLOAT VOLTAGE 14.28 V 14.04 V 13.80 V 13.56 V 13.32 V
CHARGE VOLTAGE 29.76 V 29.28 V 28.88 V 28.24 V 27.84 V
FLOAT VOLTAGE 28.56 V 28.08 V 27.60 V 27.12 V 26.64 V
CHARGE VOLTAGE 59.52 V 58.56 V 57.76 V 56.48 V 55.68 V
FLOAT VOLTAGE 57.12 V 56.16 V 55.20 V 54.24 V 53.28 V
48V
24V
12V
2V
GEL BATTERIES
2.38 V
2.28 V
14.28 V
13.68 V
28.56 V
27.36 V
57.12 V
54.72 V
Storage Temperature Refresh Charge Interval
Below 20ºC (68ºF) 9 Months
20ºC (68ºF) - 30ºC (86ºF) 6 Months
Higher than 30ºC (86ºF) 3 Months
TABLE 6:
Storage
Temperature
& Refresh
Charge
TABLE 7: GEL Charge Voltage