Compatibility - 24V 9 Ah (Extended Range Upgrade) battery replacement for versions 33 and up of the Razor MX400 Dirt Rocket electric dirt bike Premium Branded Batteries - AlveyTech battery packs use Universal Battery (UPG) brand batteries, leading suppliers of battery and power-related products in the United States for over 50 years Safely Packaged - To prevent damage, battery packs will not be shipped pre-assembled and will ship with protective terminal caps. Wiring harness will need to be installed. Instructions included Maximize Performance and Lifespan - Top charge prior to first use, keep charged even during periods of storage, don't overcharge, and use manufacturer recommended charger Verify Model Version - Check your Razor 19-digit ID, the 7th and 8th numbers in your product ID code are the version number of your Razor product (e.g. "01" = V1, "09" = Version 9, etc.) Manufacturer Part Numbers - W15130640003 / W15130412003 / W15120040003 / UB1290 Ease of Mind - Rechargeable, maintenance free, valve regulated, easy to handle, spill proof, Sealed Lead–Acid (SLA), utilizes Absorbed Glass Mat (AGM) technology. UL Certified: UL 2271 The Razor MX400 Dirt Rocket is a great little electric dirt bike, but if it gets taken out into the dirt and ridden as often as it should, then the batteries will soon be ripe for replacement. Our OEM equivalent 24 volt battery pack for the Razor MX400 may be one of the very the best values in recreational electric dirt bike parts today.

You will receive two new 12 Volt 7 Ah batteries that will keep your MX400 running its very best. But our offer gets even better. We let you upgrade your battery pack with a pair of high capacity 12 Volt 9 Ah batteries for an increased runtime of up to 28%.

Like we do with all of our Razor battery packs, we also give you the option of ordering the Razor MX400 battery pack with the correct Razor MX400 wire harness. Be sure to select which options you want from the dropdown list when ordering your battery pack.