12VVolts
40AhAmp-hours at C20
13.3 kgBattery weight
Quick answer: Drivers and owners of mobility scooters and wheelchairs know this one as the Long LG40-12. Get the size and terminal side right and you are most of the way there.
Long LG40-12 data sheet
BrandLong
ReferenceLG40-12
SeriesLG Series
Used formobility scooters and wheelchairs
Volts12V
Amp-hours at C2040Ah
Battery technologyGel
Dimensions (L × W × H)199 × 166 × 171 mm
Battery weight13.3 kg
Terminal polaritypositive on the right-hand side
Getting the best from the Long LG40-12
Days out on grass and gravel drain batteries faster than pavements. Keep terminals clean and dry. After a few years of daily use, most mobility batteries need renewing.
Same case, same terminal side
Cannot find the Long LG40-12 you want? These share the same size and terminal layout.
Long LG40-12NLong LG45-12Long LG45-12NLong LG50-12Long LG50-12N
Why choose the Long LG40-12
Families often order the Long LG40-12 for a relative's chair. Ratings of 40Ah 12V are the first thing to compare with the original pair. Ordering online saves carrying heavy batteries home from a shop.
A capacity of 40Ah matches what many vehicles and machines in this group expect.
Your questions answered
Any tips for keeping a spare battery?
Keep it upright somewhere cool and dry, and charge it before fitting if it has been stored for a while.
How large and heavy is this battery?
The case measures 199 × 166 × 171 mm and the battery weighs 13.3 kg. Check both against your tray and the hold-down before ordering, and lift it with care.
Is the Long LG40-12 a 12V battery?
Nominal voltage is 12V and capacity 40Ah. Wiring two in series doubles the voltage, while parallel wiring doubles the capacity.
How are the terminals arranged?
The layout is positive on the right-hand side. Check the original before ordering, because the same case size is often sold in both orientations.
Five checks for a perfect fit
- ✓ Capacity is 40Ah. Aim for the same figure as your old battery or slightly above, never much lower.
- ✓ The technology is gel. Keep the same type as the original, and confirm your charger offers a matching profile.
- ✓ Dimensions to compare: 199 × 166 × 171 mm. Do not forget the base ledge, which the hold-down clamp grips on many vehicles.
See also
Ordering online at baterias.online is the quick part once the checks are done. Other Long models are linked below if you need a different size from the same maker.
The gel technology explained
Nothing can spill from a gel cell, because the electrolyte no longer flows. Solar storage benefits from gel's patience with repeated cycling. Recharge a gel battery soon after each discharge rather than leaving it empty.
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