The Frost Line | 12V LiFePO4 Battery with Low-Temperature BMS (100Ah-300Ah)

Economisez 20%
EastSupplier PlatformSKU: 1005011611206998-12V100Ah-Poland

Color: 12V100Ah
Prix:
$459.19 $573.99

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Stock:
260 en stock, prêts à être livrés

Description

Some batteries surrender to winter. This one was built for it.

Ask any motorhome owner where batteries go to die and they will point north. Cold is the silent killer of lead-acid banks - capacity evaporates, charge acceptance collapses, and plates sulfate in the dark months. The Frost Line answers with a low-temperature Battery Management System that protects the pack through the conditions other chemistries fear, wrapped in an IP67-rated ABS case that shrugs off dust, splash, and the inside of a wet campervan garage. Beneath that shell sit prismatic LiFePO4 cells rated for 4500+ cycles - a decade of daily duty at 100% depth of discharge.

The numbers tell the real story. One-third the weight of lead-acid, twice the usable capacity from the same rated amp-hours, and a self-discharge rate below 3% per month, so the battery you park in October is still charged in April. The BMS is not a passive observer: it balances cells continuously, cuts the circuit on over-current, over-voltage, or short circuit in real time, and keeps charging disciplined at 14.4V. Four units stack into a 4S4P bank delivering 51.2V at 400Ah - 20.48kWh of stored energy for a serious off-grid home.

This is not a battery. It is your power bank that refuses to acknowledge the season.

Key Features

  • ✦ Low-temperature BMS protection - engineered for cold-weather storage and camping
  • ✦ 4500+ charge cycles with 100% depth of discharge (vs 40-50% for lead-acid)
  • ✦ Only one-third the weight of an equivalent lead-acid battery
  • ✦ IP67-rated ABS case: dust-tight and protected against immersion
  • ✦ Continuous cell balancing, over-voltage, under-voltage, short-circuit and temperature protection
  • ✦ Expandable up to 4S4P - 51.2V 400Ah for a full 20.48kWh bank
  • ✦ Self-discharge under 3% per month - park it, forget it, come back to a charged pack

Technical Specifications

  • Models:12V 100Ah / 12V 200Ah / 12V 300Ah
  • Nominal Energy:1280Wh / 2560Wh / 3840Wh
  • Cycle Life:4500+ cycles @ 100% DoD
  • Dimensions:332x172x220mm (100Ah) / 550x230x220mm (200Ah & 300Ah)
  • Internal Resistance:≤50mΩ / ≤40mΩ / ≤30mΩ
  • Standard Charge Current:20A / 40A / 60A
  • Maximum Charge Current:100A / 200A / 200A
  • Maximum Discharge Current:120A / 200A / 235A
  • Charging Voltage:14.4V ±0.2V
  • Overcurrent Protection:130A / 210A / 250A
  • Case:ABS, IP67 rated
  • Self-Discharge:<3% per month

Where it lives: The Frost Line was designed for the travellers and the self-sufficient - motorhomes and campervans that winter in the mountains, solar sheds in northern climates, caravan off-grid systems, sailboats in cold harbors, and home backup rooms that need a bank that simply starts. Because the BMS manages low-temperature charging safely, this is one of the few drop-in LiFePO4 upgrades you can make with confidence in a cold climate. And when your system grows, the modular bank grows with you: four packs in 4S4P deliver a full 51.2V 400Ah home-storage foundation.

Frequently Asked Questions

Q: What makes this battery different in cold weather?

The low-temperature BMS actively manages charging in cold conditions, protecting the cells from the damage that destroys unprotected LiFePO4 packs. It is one of the few 12V drop-in batteries designed with winter in mind.

Q: How does 100% depth of discharge help me?

A lead-acid battery only lets you safely use 40-50% of its rated capacity. LiFePO4 allows full discharge, so a 100Ah Frost Line delivers roughly double the usable energy of a 100Ah lead-acid battery of the same size.

Q: Can I connect multiple units?

Yes - up to 4 in series or 4 in parallel. A 4S4P configuration delivers 51.2V at 400Ah, a complete 20.48kWh storage system. Ensure all batteries are fully charged and voltage-balanced before wiring.

Q: How long will it last?

Rated for 4500+ charge cycles at 100% DoD. In daily cycling that is roughly 10 years of service - several times the lifespan of a lead-acid bank, with no maintenance, no acid, and no venting.

Q: Is it really lighter than lead-acid?

Yes - LiFePO4 packs weigh about one-third of an equivalent lead-acid battery, which simplifies installation in RVs, boats, and mobile applications.

Q: What is the self-discharge rate?

Under 3% per month, so a battery stored in autumn will hold its charge through the winter and be ready to work in spring.

Q: Does it come with a charger?

Selected models ship with a compatible charger included - check the model name, as units marked 'with charger' include one. For the others, use a LiFePO4-specific charger at 14.4V.

Q: Can I use it in a marine application?

Yes - the IP67-rated case resists moisture and splash, and the BMS tolerates the vibration and temperature swings of onboard use. Torque the terminals properly and protect them in saltwater environments.

Customer Reviews

Customer Reviews

Based on 4 reviews
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25%
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I
Ingrid F.
Self-discharge claim is accurate

Left it on the shelf for a month and it barely dropped. The 4500-cycle rating means this should outlast two lead-acid replacements. Wiring two in parallel for the caravan was simple.

R
Rafael G.
Great bank, mind the weight when moving it

The 300Ah model is genuinely powerful - runs my fridge and lights for days. It's lighter than lead-acid but still a two-person lift. Four stars only because shipping took a week; the battery itself has been flawless for three months.

H
Hannah M.
Full depth of discharge is a game changer

My old AGM battery would sag at 50% discharge. This one runs to 100% DoD without complaint, so my 100Ah effectively gives me the usable capacity of a 200Ah lead-acid. Perfect for the solar shed setup.

L
Liam O.
Winter-ready battery, no more cold-weather panic

Stored my campervan battery from October to April and it came back at 92% charge - the low-temp BMS is the real deal. The IP67 case also means I don't stress about moisture in the van's under-seat compartment.

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