Lithium vs AGM in Caravans - What You Need to Know
Lithium vs AGM in Caravans - What You Need to Know
Intro
LiFePO4 has changed off-grid touring. Here is a practical comparison with AGM so you can decide with confidence.
Why Lithium (LiFePO4) Wins For Most Travellers
- Usable capacity - more depth of discharge without damaging the battery.
- Fast charging - accepts higher charge rates when paired with the right chargers.
- Lighter weight - significant saving compared with AGM for the same usable energy.
- Long cycle life - ideal for frequent touring.
Where AGM Still Makes Sense
- Low upfront cost for occasional use.
- Existing systems where replacement like-for-like is simplest.
Charging Differences
- Lithium - needs lithium profiles on DC-DC, solar MPPT and mains chargers.
- AGM - higher absorption times, lower acceptance as it nears full.
Weight and Space
- Lithium packs more usable energy per kilo and per cubic centimetre.
Bottom line
For most caravan setups, lithium gives more usable energy, faster charging and less weight - perfect for modern off-grid travel.
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