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Black rectangular fire-retardant bag with handle and Velcro closure, 6.25 by 1.75 inches

Common Sense RC

Common Sense RC Magnum Lipo Safe Bag 7 x 6.25 x 1.75

SKU CH-Z1VJ-KMH20

Fire-retardant bag holds multiple 3S LiPo batteries measuring 7 x 6.25 x 1.75 inches with secure Velcro closure and elastic straps

  • Fire-retardant fabric contains LiPo fires
  • Holds multiple 3S batteries in 7 x 6.25 x 1.75 inch space
  • Elastic straps secure batteries during transport
  • Heavy-duty Velcro closure seals the bag
  • Built-in vents reduce pressure while charging

Magnum Lipo Safe Bag for Multiple 3S Batteries

The Common Sense RC Magnum bag is a fire-retardant carrier built to hold several 3S lithium polymer packs during charging and storage. Its 7 x 6.25 x 1.75 inch dimensions give a snug fit that keeps cells organised and protected. Hobbyists and professionals who want a single, portable safety enclosure for multiple batteries will find it suited to daily transport and bench use. It is not intended for builders who need to shield larger 4S or 6S packs or for anyone requiring a hard-shell case.

Thermals Noise and Power Draw

The fire-resistant fabric and internal elastic straps contain heat and flames if a cell vents, while strategically placed vents reduce pressure build-up during normal charging. No fans or active cooling are present, so the bag adds no audible noise and draws zero electrical power. The heavy-duty Velcro closure stays sealed during routine handling, and the sturdy handle makes carrying to and from the charging station effortless.

Behaviour Under Sustained Load

During extended charge cycles the vented design allows gases to escape without rupturing the enclosure, maintaining containment even if a single pack fails. The fire-retardant material is rated to withstand prolonged exposure to intense heat, giving the user time to react and move the bag to a safe area. Elastic straps prevent cell movement that could cause shorts during long transport sessions, and the Velcro seal remains secure after repeated opening and closing.

Highlights

  • Fire-retardant fabric contains LiPo fires
  • Holds multiple 3S batteries in 7 x 6.25 x 1.75 inch space
  • Elastic straps secure batteries during transport
  • Heavy-duty Velcro closure seals the bag
  • Built-in vents reduce pressure while charging

Specifications

No published specifications for this item yet.

Questions about this item

How do I place batteries inside the bag so the elastic straps actually hold them?

Lay each 3S pack flat against the interior panel, then stretch the elastic straps over the widest part of the battery and press the Velcro tabs together until they grip; the straps must cross the centre of the cell, not just the ends, or the pack can shift during transport.

What part of the bag wears out first and how do I know it needs replacing?

The heavy-duty Velcro closure loses grip after repeated cycles; if the flap no longer seals with a firm press or the hook side feels smooth instead of scratchy, replace the bag because a loose seal defeats the fire-containment design.

At what point do the vent openings stop relieving pressure during a long charge?

The vents are sized for normal 3S charging rates; if a pack swells enough to press against the 1.75" depth wall, internal pressure can exceed what the fixed openings can bleed off, so stop charging immediately if the bag feels taut.

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