[Jody Lang]

Originally Posted by Peter Ash

Jody


I believe the charge rate is voltage and temperature sensitive!

http://www.optimabatteries.com/en-us...care/charging/

YELLOWTOP® Type: D51 & D51R - D35 – DS46B24R - D75/25 - D34 – D34/78 - D27F
These batteries are dual-purpose. They are designed for engine start and cyclic applications and for use in vehicles with large accessory loads.
Recommended charging information:

Alternator:

• 13.65 to 15.0 volts, no amperage limit.

Battery Charger:

• 13.8 to 15.0 volts, 10 amps maximum, approximately for 6-12 hours.

Cyclic 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 2 amp constant current for 1 hour.

Rapid Recharge:

• Maximum voltage 15.6 volts (regulated), no current limit as long as battery temperature remains below 125°F (51.7°C). Charge until current drops below 1 amp.

Good info !!!