ECTIVE LC 200 Marine LT 12V vs ECTIVE LC 280s LT Underseat
Technical comparison · Lithium batteries for campers
Same voltage, 12 V: the choice is between the Marine, with IP67 protection, and the Underseat, which holds more (3.584 kWh against 2.56 declared) and has a longer warranty but only IP21. Where it gets mounted decides first: 14.5 cm of height against 23.2.
| Parameter | ||
|---|---|---|
| Awards | — | |
| In brief | ||
| Capacity in kWh | 2.56 kWh | 3.584 kWh |
| Cell chemistry | LFP (lithium iron phosphate) | LFP (lithium iron phosphate) |
| List price | 1559.2 € | 2249 € |
| Weight | 22.5 kg | 28 kg |
| Dimensions (W×D×H) | 48.5 × 17.2 × 23.2 cm | 34.5 × 33 × 14.5 cm |
| How long it lasts | ||
| Battery life cycles | 1825 cicli | 2555 cicli |
| The limit that runs out first | anni di garanzia | anni di garanzia |
| Rated cycles | 4000 cicli | — |
| Warranty | 5 anni | 7 anni |
| The numbers | ||
| Cost of stored energy | 0.334 €/kWh | 0.246 €/kWh |
| Energy density | 113.8 Wh/kg | 128 Wh/kg |
| Identity | ||
| Use tier | F2 — Room-sized (1–3 kWh) | F3 — Flat-sized (3–8 kWh) |
| Price | ||
| Price | 779.60 € | 2249 € |
| Category specs | ||
| System voltage | 12 V | 12 V |
| Capacity | 200 Ah | 280 Ah |
| Maximum discharge current | 200 A | 350 A |
| Maximum charge current | 200 A | 200 A |
| Low-temperature charge protection | Yes | Yes |
| Bluetooth monitoring | Yes | Yes |
| Ingress protection | IP67 | IP21 |
JouleSpecs Awards
No awards in this tier.
Best value Flat-sized (3–8 kWh)
Best balance of technical score and price among the 5 sheets in the Lithium batteries for campers category (flat-sized tier): list price €2249, technical score 63/100.
How we assign awards →The differences that matter
- IP67 versus IP21 → the Marine tolerates a compartment exposed to water; the Underseat belongs where water does not reach.
- 200 Ah and 2.56 kWh versus 280 Ah and 3.584 kWh → the Underseat holds about 1 kWh more.
- 200 A versus 350 A in discharge (manufacturer values) → only the Underseat reaches 350 A; in charge both stop at 200 A.
- 22.5 kg and 23.2 cm high versus 28 kg and 14.5 cm high → the Marine is lighter, the Underseat fits a lower space.
Which one to choose
Choose ECTIVE LC 200 Marine LT 12V if…
the battery sits somewhere water can reach and IP67 matters more than reserve. It weighs 22.5 kg, 5.5 kg less than the other, with 200 Ah (2.56 kWh), 200 A in discharge (manufacturer-declared values) and a five-year warranty instead of seven. You need 23.2 cm of height.
Choose ECTIVE LC 280s LT Underseat if…
you have a low compartment not exposed to water: 14.5 cm of height (34.5 × 33 cm footprint) makes the difference, and you want 280 Ah (3.584 kWh), discharge up to 350 A and seven years of warranty. You give up IP67, as the rating is IP21, and carry 28 kg.
Where to buy
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