The following charging methods are recommended to ensure a long battery life: (Always use a voltage regulated charger with voltage limits set as described below.)
These batteries are designed for starting and deep cycle applications and for use in vehicles with large accessory loads.
Recommended Charging Information:
13.65 to 15.0 volts
Battery Charger (Constant Voltage):
13.8 to 15.0 volts; 10 amps maximum; 6-12 hours approximate
13.2 to 13.8 volts; 1 amp maximum; (indefinite time at lower voltages)
(Constant voltage charger)
Maximum voltage 15.6 volts. No current limit as long as battery temperature remains below 125°F (51.7°C). Charge until
current drops below 1 amp.
Cyclic or Series String Applications:
14.7 volts. No current limit as long as battery temperature
remains below 125°F (51.7°C). When current falls below 1 amp, finish with 3 amp constant current for 1 hour.
All limits must be strictly adhered to.
(example assuming 100% discharge – 10.5 volts)
Battery recharge time will vary according to temperature and charger characteristics. When using Constant Voltage chargers, amperage will taper down as the battery becomes recharged and a full state of charge will be near when amperage drops below 1 amp.