Optima D31A Yellow Top Deep Cycle Yellow Top Battery Detail of over-pressure vent on D31 series Optima batteries: Battery does not vent during normal operation, but remote venting tube can be attached as a safety, making the Optima D31A battery ideal for enclosed spaces.

Optima D31A Yellow Top Deep Cycle Battery Optima D31A Yellow Top Battery: The D31 series batteries are Optima's most powerful Yellow Top batteries. Like all Optima batteries, the D31A Yellow Top offers exceptionally high CCA for its size and boasts 75 amp hours of current storage for long deep-cycling run times. The D31A Yellow Top will not off-gas in normal operation, but for complete safety in enclosed spaces its overpressure vent will accept a remote venting tube. The D31A offers the best performance/cost value on the market. It's a stellar performer in virtually any deep cycle battery application, and its Spiralcell AGM construction make it tough as nails... 14x more shock and vibration resistant than conventional batteries.The D31A Yellow Top battery has standard SAE automotive post connectors. (The D31T offers identical performance with stainless steel threaded stud connectors instead of automotive posts.) Optima D31A Yellow Top Battery: >> Click for full Optima specs and ordering information <<

1st Optima Battery Sales offers superior Optima deep cycle and starting
batteries for automotive, marine and other applications.

Click for:

Optima Batteries Sales
Optima Yellow Top Battery
Optima Blue Top Battery
Optima Red Top Battery
Optima Battery Selection Guide
Optima FAQ


For other "Optima" information, please don't call as we sell Optima batteries exclusively.

Instead see:

Optima Contact Lenses
Optima Fund Management Optima Software Technology
Optima Battery Corporate
Optima Battery Europe