Quick answer: The battery on this page is the Ritar RA12-240A, aimed at boats and motorhomes. Owners usually check three things first: size, terminal side and starting power.
Is the Ritar RA12-240A right for you?
Sailing yachts, motor cruisers and campervans all turn up among the users of the Ritar RA12-240A. Identical batteries share the load evenly in a bank. Batteries online for boats and motorhomes are simplest to choose by the code on the old one.
Need extra reserve? 254Ah puts this one near the top for boats and motorhomes. 43.7 kg keeps the load down, useful on bikes, boats and motorhomes.
12VVoltage
254AhCapacity, 20-hour rate (C20)
43.7 kgWeighs
Check before ordering
- ✓ Capacity is 254Ah. Aim for the same figure as your old battery or slightly above, never much lower.
- ✓ Connector style: M8. Look closely at the old battery's posts or tabs and make sure they are the same type.
- ✓ This reference uses AGM. If your current battery has a different technology printed on it, find out why before switching.
Full specifications of the Ritar RA12-240A
Your questions answered
Is this battery easy to lift?
At 43.7 kg, it is manageable for one person with care. Keep it upright while moving it.
Should I charge a stored battery before use?
Yes, gradually. Lead batteries lose a little charge each month, lithium much less. A quick charge before use is a good idea.
How big and heavy is this Ritar battery?
Overall it is 522 × 240 × 224 mm (L × W × H) and tips the scales at 43.7 kg. Weight is a good clue to how much active material is inside.
Can I connect several of these in series or parallel?
Yes, if they are identical. Two 12V units of 254Ah in series give double the voltage; in parallel they give double the capacity at 12V.
The AGM technology explained
Open up an AGM battery in your imagination and you would find the acid soaked into thin glass-fibre sheets squeezed against each plate. Premium cars with lots of electronics usually come with AGM from new. Do not mix AGM and flooded batteries in one bank.
Batteries with the same format
Listed below: batteries with the same case and polarity as the Ritar RA12-240A.
Ritar EV12-240Ritar RA12-200AFullriver DCG200-12
More options
Keep the code RA12-240A handy for next time: it makes reordering at baterias.online quick. Once the battery is in, keep the old one for recycling at an authorised point.
Ritar RA12-240A in everyday use
Motorhomes with roof solar may still run short in November when the days are short. Set the mains charger, the solar regulator and any B2B charger to the AGM profile. Lights that fade by midnight are a sign the domestic bank has lost capacity.
