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Rectangular black sealed battery with two terminals on top

BatteryJack inc.

BatteryJack inc. 12V 9AH Razor MX400 Dirt Rocket Battery

SKU CH-Q6KF-ZYCR9

12V 9AH sealed lead-acid battery with T2 terminals fits Razor MX400 Dirt Rocket and reuses the original harness

  • 9AH capacity extends ride time on the MX400
  • Sealed AGM design prevents leaks in any orientation
  • Maintenance-free operation requires no electrolyte checks
  • 100% OEM fit reuses the original harness
  • 24-month warranty backs long-term reliability

Razor MX400 Dirt Rocket Battery

This 12V 9AH sealed lead-acid battery is a direct OEM replacement for the Razor MX400 Dirt Rocket. It uses advanced AGM technology and a T2 terminal layout so owners can reuse the original harness. The maintenance-free design suits riders who want a drop-in power source without fluid checks.

Upgrade from lower-capacity packs

The 9AH rating is the highest capacity offered for this model, extending run time between charges compared with standard 7AH or 8AH units. The jump is worth it when longer sessions or heavier loads demand more stored energy. Buyers needing even more runtime will need a different platform because this case size is fixed.

AGM sealed-lead-acid limits

The absorptive glass mat construction recombines over 90 percent of generated gas and is classified non-spillable for safe operation in any position. It cannot match the energy density or cycle life of lithium chemistries and will self-discharge during long storage. The 24-month warranty covers defects but does not change the chemistry's inherent weight and voltage sag under load.

How it compares

Measured against everything we stock in LiPo Battery Packs & Chargers, at today’s prices. Recalculated every night.

Price $44.99
Pricier than about 90% of the 221 comparable items (median $12.99).

Specifications

No published specifications for this item yet.

Questions about this item

What are the exact dimensions of the 12V 9AH battery so I can confirm it fits the Razor MX400 Dirt Rocket battery compartment?

The battery measures 5.94in in length, 2.56in in width and 3.72in in height. Verify your compartment matches these figures before ordering.

How do I install the battery using the existing harness, and what is the common mistake to avoid?

Reuse the old harness by connecting it to the T2 terminals. The frequent error is reversing polarity; always match positive to positive and negative to negative.

What maintenance or replacement should I expect for this sealed AGM battery over its service life?

The sealed AGM design is maintenance-free with an expected life of 4-7 years. Plan to replace the unit once it no longer holds a sufficient charge.

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