Photo from the manufacturer
Liontron LX Smart 12,8 V 300 Ah Arctic Untersitz
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Liontron LX Smart 12.8 V 300 Ah Arctic Untersitz is a LiFePO4 camper battery for mounting under the seat. It has an integrated Arctic Upgrade (cold-charge protection), and its status is read from a phone over Bluetooth. Its capacity is 300 Ah, equal to 3840 Wh, and the case has IP65 protection rating.
Service life is at least 3000 cycles at 90% depth of discharge. The warranty lasts ten years and applies if capacity falls below 70% of nominal.
Before ordering it, the compartment under the seat it has to fit in needs to be measured.
Technical specifications
| Parameter | Value | Source |
|---|---|---|
| Dimensions | 34.9 × 34.9 × 19.1 cm (13.7 × 13.7 × 7.5 in) | manufacturer website |
| Weight | 33.35 kg (73.5 lb) | manufacturer website |
| System voltage | 12 V | Declared by the brand |
| Capacity | 300 Ah | Declared by the brand |
| Cell chemistry | LFP (lithium iron phosphate) | Declared by the brand |
| Maximum discharge current | 200 A | Declared by the brand |
| Maximum charge current | 200 A | Declared by the brand |
| Low-temperature charge protection | Yes | Declared by the brand |
| Bluetooth monitoring | Yes | Declared by the brand |
| Ingress protection | IP65 | Declared by the brand |
| Rated cycles | 3000 cicli | Declared by the brand |
| Warranty | 10 anni | Declared by the brand |
| Guaranteed remaining capacity | 70 % | Declared by the brand |
| Capacity in kWh | — | Not declared |
| Capacity at end of cycle life | — | Not declared |
| Guaranteed throughput | — | Not declared |
| Official list price | — | Not declared |
Which documents this page rests on
A manual or a datasheet counts as a source even when the original file is hosted elsewhere: what matters is the document, not the server. Where that happens, it is stated above.
What it really costs
- the manufacturer does not state the guaranteed total energy throughput, which for heavy users is often the limit that runs out first
How we worked it out
- stated cycles
- 3000
- warranty years
- 3650
These numbers are calculated, not stated: they have no source to cite, they have a formula you can redo. The price used is the manufacturer's list price, which is stable and the same in every country — not a shop's price on the day.
Pros and cons
In favour
- Integrated Arctic Upgrade for cold-charge protection.
- Status readable from a phone over Bluetooth with a dedicated app.
- At least 3000 cycles at 90% depth of discharge.
- Ten-year warranty.
Worth knowing
- The compartment under the seat needs to be measured before ordering: with 3840 Wh in a single block the battery is large.
- The recommended charge current is lower than the maximum allowed: to stay at the recommended value the charger needs to be set accordingly.
- For capacity loss the warranty applies only below 70% of nominal: down to that threshold the loss is not covered.
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Updates to this sheet and Manufacturer Notes
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Sheet published Specifications updated: nome