12VVoltage
180AhCapacity, 20-hour rate (C20)
1000ACold cranking current (EN)
At a glance: Quick facts on the Exide ER850: intended for boats and motorhomes, rated 180Ah 12V 1000A. Capacity of 180Ah and 1000A for cold starts are the numbers to compare.
Exide ER850: dimensions and ratings
MakeExide
Part numberER850
RangeEXIDE MARINA DUAL ER
Applicationboats and motorhomes
Voltage12V
Capacity, 20-hour rate (C20)180Ah
Cold cranking current (EN)1000A
Stored energy850 Wh
Battery technologyLead-acid
Dimensions (L × W × H)513 × 223 × 223 mm
Battery weight46.1 kg
Layout3
EAN3661024037440
Exide ER850 in everyday use
A caravan with a motor mover asks for big bursts of current. Check the charge splitter or relay after fitting new batteries. Draining a lead bank flat every night shortens its life drastically.
Other options with identical dimensions
Other references from our catalogue with the same measurements and terminal position.
Exide EN1100Exide EP1500Exide ET1300Q-Battery 12SEM-180Varta LFD180
About the Exide ER850
Built for life on board boats and motorhomes, the Exide ER850 keeps lights and pumps going. Rated 180Ah 12V 1000A, it gives a solid base for planning a domestic bank. Plenty of owners now pick batteries online while planning the winter refit.
At 180Ah, there is plenty in reserve compared with most batteries for boats and motorhomes.
Your questions answered
Is this the right replacement for my current battery?
Read the part number on your existing battery and look up the original fitment in the manual. If either points to ER850, or the figures agree, it will work.
Can I buy the Exide ER850 online?
Yes. Each product has its own page with every published figure. Once you have confirmed the match, the order is placed entirely online.
I cannot read the label on my old battery. What now?
Look for the printed code on the battery label, then search on baterias.online for the brand followed by that code, for example Exide ER850.
How many watt-hours can the Exide ER850 store?
The rated energy is 850 Wh. It is a useful number for comparing batteries of different voltages.
Will the Exide ER850 fit?
- ✓ Set your charger to lead-acid before the first charge.
- ✓ Size check: 513 × 223 × 223 mm. A battery even slightly taller than the original can touch the bonnet or the seat base.
- ✓ With 180Ah of capacity, hold it up to the figure on the outgoing unit or in your equipment manual.
Explore more
Everything you need to order the Exide ER850 is on this page. Not quite the right size? Have a look at other batteries for boats and motorhomes.
lead-acid: how it works
Six cells of about two volts each make up a typical 12-volt battery. Older cars without auto-stop run happily on flooded batteries. Top up only with distilled water, after charging, never above the mark.
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