12VVolts
140AhCapacity, 20-hour rate (C20)
750ACold cranking amps
Quick answer: In a nutshell: Exide ER660, a battery for boats and motorhomes, rated 140Ah 12V 750A. Get the size and terminal side right and you are most of the way there.
Exide ER660 data sheet
BrandExide
ReferenceER660
SeriesEXIDE MARINA DUAL ER
Suitsboats and motorhomes
Volts12V
Capacity, 20-hour rate (C20)140Ah
Cold cranking amps750A
Battery technologyLead-acid
Dimensions (L × W × H)513 × 189 × 223 mm
Weight37.3 kg
Layout code3
EAN3661024036429
Practical advice for boats and motorhomes
A motorhome parked on the drive slowly loses charge to its alarm and tracker. Write the fitting date on each battery in the bank. Leaving the charger on the wrong chemistry setting can quietly overcharge or undercharge a whole season.
Other options with identical dimensions
Looking to compare? Each of these has the dimensions and polarity of the Exide ER660.
Exide EN900Exide EP1200Varta LED140Varta LFD140Q-Battery 12SEM-137
Why choose the Exide ER660
Narrowboats and fishing boats sometimes carry a Exide ER660 too. Dual-purpose batteries can start a small engine and run the cabin. Buying batteries online saves carrying heavy units along a pontoon twice.
Nothing unusual about 140Ah: a standard capacity for boats and motorhomes.
Answers before you buy
How much capacity and starting power does the Exide ER660 offer?
Expect 750A of cranking power and 140Ah of storage. Matching or beating your old label is the safe rule.
Which voltage does the Exide ER660 run at?
Nominal voltage is 12V and capacity 140Ah. Wiring two in series doubles the voltage, while parallel wiring doubles the capacity.
Is lead-acid the same as the battery I have now?
It is built with lead-acid technology. Pick charging equipment with a matching mode and avoid storing it discharged.
Make sure it fits your vehicle or equipment
- ✓ With 140Ah of capacity, hold it up to the figure on the outgoing unit or in your equipment manual.
- ✓ Diesels and big engines need the full 750A or more.
- ✓ Set your charger to lead-acid before the first charge.
More options
Finished comparing? Placing your order online takes a couple of minutes. Bookmark this page if you want the data sheet to hand while fitting.
What lead-acid means for you
Charging reverses the chemistry and restores the plates. Older cars without stop-start systems are happy with a standard lead-acid battery. Top up only with distilled water, after charging, never above the mark.
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