Posted by Willy-N on Thursday, May 22, 2003 at 8:06PM :
In Reply to: What's a hydrometer? posted by EdC on Thursday, May 22, 2003 at 4:25PM :
The following charging methods are recommended to insure a long battery life: (Always use a voltage regulated charger, with voltage limits set as described below.)
34 / 34R / 34/78 / 6V / 34M / 35/75
These batteries are designed for engine starting applications. They are NOT recommended or warranted for use in deep cycle applications.
Recommended charging rates:
Alternator:
13.8 to 15.0 volts no amperage limit.
Battery charger:
13.8 to 15.0 volts, 10 amps maximum, 8 hours maximum.
Boost Recharge:
Maximum voltage 15.6 volts (regulated).
Maximum current: 60 amps.
Maximum recharge time: 2 hours.
All limits must be strictly adhered to.
Float charge:
13.2 to 13.8 volts, 1 amp maximum current, time indefinite (at lower voltage levels).
To charge the OPTIMA 6V-1050, six volt battery, divide the charge voltage setting in half. D34 / D34/78 / D6V / D34M These batteries are designed for cyclic applications and for use in vehicles with large accessory loads.
Recommended charging information:
Alternator:
13.8 to 15.0 volts no amperage limit.
Battery charger:
13.8 to 15.0 volts, 10 amps maximum, 8 hours maximum.
Constant voltage:
14.7 to 15.0 volts, temperature <50°C, no current limits, continue until current falls below 1 amp, then finish with 2 amp constant current for 1 hour.
Float charge:
13.2 to 13.8 volts, 1 amp maximum current, time indefinite.
Always wear safety glasses when working with batteries.
Always use a voltage regulated battery charger with limits set to the above ratings. Overcharging can cause the safety valves to open and battery gasses to escape, causing premature failure. These gasses are flammable! You cannot replace water in sealed batteries that have been overcharged. Any battery that becomes very hot or makes a hissing sound while recharging should be disconnected immediately.
Failure to fully charge a battery can result in poor performance and a reduction in capacity.