ECTIVE LC 200 Slim LT 12V vs ECTIVE LC 280s LT Underseat

Technical comparison · Lithium batteries for campers

In brief

Two 12 V lithium batteries from the same maker in a similar size class. The choice is between a slim, upright shape with higher protection and a low, flat block with more energy and faster charging.

Parameter
Awards —
In brief
Capacity in kWh — 3.584 kWh
Cell chemistry LFP (lithium iron phosphate) LFP (lithium iron phosphate)
List price 1782 € 2249 €
Weight 25.1 kg 28 kg
Dimensions (W×D×H) 13.6 × 46.6 × 32 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
Warranty 5 anni 7 anni
The numbers
Cost of stored energy — 0.246 €/kWh
Energy density — 128 Wh/kg
Identity
Use tier F2 — Room-sized (1–3 kWh) F3 — Flat-sized (3–8 kWh)
Price
Price 1425.60 € 2249 €
Category specs
System voltage 12 V 12 V
Capacity 200 Ah 280 Ah
Maximum discharge current 250 A 350 A
Maximum charge current 100 A 200 A
Low-temperature charge protection Yes Yes
Bluetooth monitoring Yes Yes
Ingress protection IP55 IP21

JouleSpecs Awards

ECTIVE LC 200 Slim LT 12V

No awards in this tier.

ECTIVE LC 280s LT Underseat

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

  • Capacity 200 Ah vs 280 Ah, both at 12 V → in theory about 2.4 kWh vs about 3.4 kWh (voltage × Ah, manufacturer-declared values): at the same load the second lasts about 1.4 times as long.
  • Maximum charge current 100 A vs 200 A → in theory about 1,200 W vs about 2,400 W accepted: with a powerful charging source the first is the limit.
  • Shape: 13.6 cm thick (46.6 × 32 cm face) vs 14.5 cm high (34.5 × 33 cm footprint) → the first stands in a narrow space, the second lies flat.
  • Protection IP55 vs IP21, warranty 5 vs 7 years → the first tolerates a less sheltered spot, the second covers two more years.

Which one to choose

Choose ECTIVE LC 200 Slim LT 12V if…

You have a 12 V system with moderate consumption and a space that is narrow in thickness: the battery is 13.6 cm thick, and its IP55 rating also suits a less sheltered spot. You give up energy, half the charge current and two years of warranty.

See the ECTIVE LC 200 Slim LT 12V sheet →

Choose ECTIVE LC 280s LT Underseat if…

You want more energy and quicker charging and have room for a low, wide block, for example under a seat. The trade-off is protection: IP21 wants a dry, covered place. In return it has a 7-year warranty.

See the ECTIVE LC 280s LT Underseat sheet →

Where to buy

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