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A bag for carrying and charging, not for fixing

SunnyLith A fire-resistant BAG, 35.6 × 24.1 × 19.8 cm, to 1649 °C claimed

A multi-layer fire-resistant and waterproof battery bag sized for a 12 V 100 Ah LiFePO4 battery, with a reinforced continuous-loop carrying handle.

SunnyLith fire-resistant battery bag with a reinforced handle

SunnyLith A fire-resistant BAG, 35.6 × 24.1 × 19.8 cm, to 1649 °C claimed

A multi-layer fire-resistant and waterproof battery bag sized for a 12 V 100 Ah LiFePO4 battery, with a reinforced continuous-loop carrying handle.

Internal dimensions
35.6 × 24.1 × 19.8 cm, fourth bullet
Group compatibility
Fits a 12 V 100 Ah LiFePO4 battery in group 31, and is offered for e-bike, camera, toy, drone and dry-cell batteries, fourth bullet
Built-in outputs
None
Fusing
None
Ventilation
None — the design is the opposite: a multi-layer composite intended to contain a fire rather than vent it, third bullet
Strap points
A reinforced circular handle joined to the base of the bag in a continuous loop, described as tear-resistant, first bullet; no mounting strap
Material
Multi-layer composite, fire-resistant and waterproof, with heat resistance stated as reaching 1649 °C, second bullet
Amazon reference
B0FM7XGTSL (same reference on 6 Amazon marketplaces)
EAN
0738253511621
  • A stated heat resistance figure, which no other product in this family gives
  • A continuous-loop handle joined to the base, so the weight is carried by the loop rather than by a seam
  • It is a bag, not a box — nothing is fixed down and nothing is restrained

Best for: Carrying and charging a lithium battery somewhere a fire would not spread.

≈ $23 / €24
Check price on Amazon

Specifications

Internal dimensions
35.6 × 24.1 × 19.8 cm, fourth bullet
Group compatibility
Fits a 12 V 100 Ah LiFePO4 battery in group 31, and is offered for e-bike, camera, toy, drone and dry-cell batteries, fourth bullet
Built-in outputs
None
Fusing
None
Ventilation
None — the design is the opposite: a multi-layer composite intended to contain a fire rather than vent it, third bullet
Strap points
A reinforced circular handle joined to the base of the bag in a continuous loop, described as tear-resistant, first bullet; no mounting strap
Material
Multi-layer composite, fire-resistant and waterproof, with heat resistance stated as reaching 1649 °C, second bullet
Amazon reference
B0FM7XGTSL (same reference on 6 Amazon marketplaces)
EAN
0738253511621

Not a box — a bag, and a different job.

What it is for

Containing a fire. The multi-layer composite is described as fire-resistant and waterproof, with a heat resistance stated as reaching 1649 °C, and the purpose given is charging and storing a lithium battery where a failure would otherwise spread.

That is a real concern and a real product. It is not a battery box.

What it does not do

Restrain anything. A battery box bolts down, holds the battery against movement and collects acid. A bag has a handle.

In a vehicle that difference is the whole safety case: an unsecured hundred-amp-hour battery in a stop is not a battery any more.

The handle

A continuous O-loop joined to the base rather than sewn to the sides. The weight goes through the loop instead of through a seam, which is the right way to carry twelve kilos.

The size

35.6 × 24.1 × 19.8 cm, sized for a 12 V 100 Ah LiFePO4 in group 31.

1649 °C, and the test behind it

1649 °C, stated without the test behind it. What was held there, and for how long, is the question — and the listing does not answer it.

Availability

German, French, Italian and Spanish Amazon stores quoted 24 € to 33 € when this page was compiled.

American Amazon store carries it too, priced in its own currency, which the euro range above deliberately omits.

British Amazon catalogue carries an entry for it, with nobody selling.

These figures are what Keepa reported on the day this page was last updated. Availability and pricing move without notice.

Prices quoted in this text were read on 16 September 2026. The live price is at the top of the page.

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