Liontron LX Smart 12,8 V 300 Ah Arctic Untersitz vs Liontron LX Smart 12,8 V 100 Ah Arctic Marine
Technical comparison · Lithium batteries for campers
Same Liontron family, same 12 V, same 10-year warranty and the same 3,000 declared cycles: what changes is capacity, 300 Ah against 100 Ah, and shape. The Untersitz is a heavy, flat-based unit; the Marine is a narrow, light battery rated IP67 (manufacturer-declared figures).
| Parameter |
LX Smart 12,8 V 300 Ah Arctic Untersitz
Liontron
F3 · Flat-sized (3–8 kWh)
Check the price at Liontron
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|---|---|---|
| In brief | ||
| Cell chemistry | LFP (lithium iron phosphate) | LFP (lithium iron phosphate) |
| Weight | 33.35 kg | 15.1 kg |
| Dimensions (W×D×H) | 34.9 × 34.9 × 19.1 cm | 35 × 17.1 × 21.5 cm |
| How long it lasts | ||
| Battery life cycles | 3000 cicli | 3000 cicli |
| The limit that runs out first | cicli dichiarati | cicli dichiarati |
| Rated cycles | 3000 cicli | 3000 cicli |
| Warranty | 10 anni | 10 anni |
| Guaranteed remaining capacity | 70 % | 70 % |
| Identity | ||
| Use tier | F3 — Flat-sized (3–8 kWh) | F2 — Room-sized (1–3 kWh) |
| Category specs | ||
| System voltage | 12 V | 12 V |
| Capacity | 300 Ah | 100 Ah |
| Maximum discharge current | 200 A | 150 A |
| Maximum charge current | 200 A | 150 A |
| Low-temperature charge protection | Yes | Yes |
| Bluetooth monitoring | Yes | Yes |
| Ingress protection | IP65 | IP67 |
The differences that matter
- 300 Ah vs 100 Ah → three times the capacity in one 12 V block; the 100 Ah needs three batteries to match it.
- 200 A vs 150 A, discharge and charge → 50 A more through a single battery.
- IP65 vs IP67 → both dust-tight; the second also tolerates temporary immersion, the first water jets.
- 33.35 kg vs 15.1 kg → over 18 kg of difference to lift and secure.
Which one to choose
Choose Liontron LX Smart 12,8 V 300 Ah Arctic Untersitz if…
you want 300 Ah in a single 12 V battery and have a low, wide space with a 34.9 cm square footprint. You accept the extra weight and a lower water-protection rating.
Choose Liontron LX Smart 12,8 V 100 Ah Arctic Marine if…
the compartment is narrow, only 17.1 cm deep, or you want a battery you can lift and swap without help. You start from 100 Ah, and matching 300 Ah takes three units.
Where to buy
The purchase links are the same as on the two product pages and don't influence the verdict. The product pages have the complete data.