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RV & Caravan · Front-Install Platform
RV & Caravan Lithium Batteries for OEM and Aftermarket
RV and caravan is a conversion story, not a sales story: the battery market is growing from $3.8B in 2025 toward $6.7B by 2034, yet 81.5% of it is still lead-acid. Industry bodies now document manufacturers redesigning vehicles to drop lead-acid hydrogen venting altogether — the front-install lithium window is open. EMS-ESS supplies Group 24 and Group 31 drop-in LiFePO4 for that transition: 12V 100–300Ah, Bluetooth state-of-charge in every unit, self-heating for winter builds, and a 4,000-plus cycle rating that lead-acid's 300–500 cannot touch.
Why Builders Are Switching
Lead-Acid's Limits Are the Spec Sheet
A lead-acid house battery bank survives 300–500 cycles and surrenders half its nameplate capacity to depth-of-discharge limits — so builders oversize the bank, carry the weight, and still field winter complaints about batteries that sat flat for a season. LiFePO4 inverts each line: 4,000-plus cycles at 95% usable depth, roughly one-third the weight, and no watering or ventilation schedule. With 81.5% of the market still on lead-acid, the first brands to standardise lithium on the line get a durable spec advantage.
- Cycle-life economics — 4,000–15,000 cycles against 300–500 means the lithium bank outlives the vehicle's finance term instead of the warranty term.
- Usable capacity — 95%+ DoD versus 50%: a single 100Ah lithium delivers the usable energy of two lead-acid units and sheds the second box from the bay.
- Winter builds — low-temperature charge cutoff as standard, self-heating variants charging through −20 °C for cold-market and off-season packages.
- Owner expectations — Bluetooth SOC in every battery answers the most common dealer support call before it is made.
Front-Install Program
12V Drop-In Specification
One 12.8V 4S platform in three capacities, mapped to the Group 24 and Group 31 case dimensions OEM lines already carry. Terminals, case color and label design are brandable; the BMS firmware stays on our supported branch for the life of the program.
| Parameter | Specification |
|---|---|
| Platform | 12.8V (4S) LiFePO4 drop-in |
| Capacity options | 100Ah · 200Ah · 300Ah |
| Energy | 1.28 · 2.56 · 3.84 kWh |
| Case groups | Group 24 / Group 31 direct fit |
| Cycle life | 4,000–15,000 cycles vs lead-acid 300–500 |
| Usable depth of discharge | 95%+ vs 50% for lead-acid |
| BMS | 100A with Bluetooth monitoring, low-temp charge cutoff |
| Self-heating option | charging down to −20 °C |
| Weight | ~25–30 lbs per 100Ah · 200Ah at 41.75 lbs — about one-third of lead-acid |
| Continuous output | 1,280W on the 200Ah model |
| Protection | IP65 enclosure |
| Certifications & warranty | UN 38.3 · CE · 5-year warranty |
Front-install sampling runs 15–20 working days against your battery-bay drawings; annual frame agreements hold volume pricing across the model year, with dealer aftermarket packs built to the identical firmware and case tooling.
Program in Production
From the Field
"Factory-fit Group 31 100Ah line across two caravan models. We cut the house bank from two lead-acid boxes to one lithium unit with more usable capacity, dropped the venting provisions from the floor plan, and dealer battery complaints have effectively disappeared since the switch."
Get a Factory Quote in 24h
Send your spec — voltage, capacity, application, annual volume. A battery engineer replies with a costed proposal.
