Photonic Universe Gel
A practical leisure battery (gel, 100Ah) for off-grid and leisure power.
The Best Motorhome & Campervan Batteries (UK 2026)
Motorhomes and campervan conversions put real demand on a leisure battery - fridge, lights, water, heating fan, charging, and often an inverter. Here's what to look for and our top motorhome and campervan picks.
Quick answer
For a motorhome or campervan, size the battery to how you travel: a 100Ah to 110Ah covers hook-up-based touring, while off-grid living, a compressor fridge or an inverter push you towards larger capacity or lithium. Lithium is increasingly the default in serious conversions for its usable capacity, weight and fast charging from solar and the alternator. Match the battery and charging system together, not just the battery alone.
What to look for
Think about your whole power system: the battery, how you charge (mains, DC-to-DC from the alternator, solar), and your loads. Off-grid campervans benefit hugely from lithium, which accepts fast charge from solar and the alternator and gives most of its capacity usably. Check the discharge rating if you run an inverter. Confirm the physical fit under a seat or in a locker, and factor weight into a converted van's payload.
How we pick
We rate motorhome batteries on usable capacity, charge acceptance, discharge capability, fit and value. Every pick suits motorhome or campervan use.
Our top picks
#1
#2 
SuperBatt LM75
A practical leisure battery (deep-cycle, 75Ah) for off-grid and leisure power.
#3 
DCHOUSE 12V 100Ah LiFePO4
A practical leisure battery (lithium (LiFePO4), 100Ah) for off-grid and leisure power.
#4 
SB S100
A practical leisure battery (deep-cycle, 100Ah) for off-grid and leisure power.
#5 
SuperBatt LM110
A practical leisure battery (deep-cycle, 110Ah) for off-grid and leisure power.
#6 
SFL
A practical leisure battery (deep-cycle) for off-grid and leisure power.
#7 
SuperBatt CB110
A practical leisure battery (deep-cycle, 110Ah) for off-grid and leisure power.
#8 
SB HL500
A practical leisure battery (deep-cycle, 130Ah) for off-grid and leisure power.
Frequently asked questions
How many leisure batteries does a campervan need?
It depends on your power use and how you charge. Many hook-up-based campers run happily on a single 100Ah battery. Off-grid conversions with a fridge, inverter and days between charges often want much more usable capacity, met either by one large lithium battery or by combining batteries. Because lithium gives roughly double the usable capacity of lead-acid for a given size, one good lithium often replaces two lead-acid batteries.
Is lithium worth it for a campervan?
For a campervan used off-grid, lithium is usually well worth it. It gives far more usable capacity in less space and weight (a real benefit for a van's payload), charges fast from solar and the alternator to make the most of limited sun, and lasts many more cycles. The upfront cost is higher, but for regular off-grid van life the performance and longevity generally justify it.
Bottom line
Our top pick is the Photonic Universe Gel (our score 9.6/10) - A practical leisure battery (gel, 100Ah) for off-grid and leisure power..