12VVoltage
92AhCapacity (C20)
800ACold cranking amps
At a glance: Here is the Fulbat FDM12-800-M27 in one line: boats and motorhomes, 92Ah 12V 800A. Before anything else, measure the space: the case comes to 306 × 168 × 233 mm.
Getting the best from the Fulbat FDM12-800-M27
Motorhomes with roof solar may still run short in November when the days are short. Check the mains charger setting each spring. Years of nightly cycling eventually take their toll on any leisure battery.
Full specifications of the Fulbat FDM12-800-M27
Care tips for lead-carbon batteries
Carbon in the negative plate changes how a lead battery ages. Off-grid cabins use lead-carbon for daily cycling. Recharge after deep discharges.
Questions and answers
Will both the size and terminals match?
It measures 306 × 168 × 233 mm with positive on the left-hand side. If your current battery has the same size and layout, it will slot in and the leads will reach.
Can a battery be stored before use?
Yes, but all batteries self-discharge slowly. Check the voltage every few months and recharge if needed.
What size is the Fulbat FDM12-800-M27 and how much does it weigh?
The case measures 306 × 168 × 233 mm and the battery weighs 28.5 kg. Check both against your tray and the hold-down before ordering, and lift it with care.
How do capacity and cranking amps compare with my old battery?
It stores 92Ah and delivers 800A of cold cranking current under the EN test. Choose a battery that matches or slightly exceeds the figures of the original.
Buying the Fulbat FDM12-800-M27 online
Cruising yachts and touring motorhomes often share the same battery code: Fulbat FDM12-800-M27. Holding 92Ah, it keeps a fridge and lights going through a quiet night at anchor. Search Fulbat FDM12-800-M27 and you land on this page with the figures in plain view.
Most batteries for boats and motorhomes land close to 92Ah, and this one does too.
More options
You will find this battery in the boats and motorhomes section of baterias.online, ready to order. Checking the terminal side takes ten seconds and saves a lot of bother.
Will the Fulbat FDM12-800-M27 fit?
- ✓ Orientation matters: positive on the left-hand side on this model. Stand facing the long side with the terminals nearest you to compare.
- ✓ 92Ah sets how long the battery can power things with the engine off.
- ✓ Starting current 800A: look for the EN value on your old label and choose this reference only if it is equal or higher.
