Extended Range Upgrade Compatible with Razor MX350 Dirt Rocket to 9ah with High Performance Replacement Batteries, Includes Battery Wiring Harness, 28% Longer Running Time Easy Slide On terminals

seems a little faster and has a longer run time

This couldn’t have been any easier to install... literally plug and play! As a replacement for the razor 24 volt system this is the way to go.We’ve used it for a week now and it runs and charges like the original batteries.

Connectors on wiring harness not tight on battery terminals. Had to crimp slightly with needle nose pliers and still hot glued them after pushing on. Seem to be holding good charge but only installed 3 weeks ago so we’ll see long term

Works fine, easy plug and play…That said, it would have been equally easy to take apart the razor bike, but the 2 batteries at around $22-25 each and install with old harness… oh well..

So far it works okay, so the batteries themselves are ok. However, I cannot be satisfied after paying extra to get the easy/quick plug cables, and those don’t fit my razor motorcycle... had to head to Home Depot to get the hardware to wire the batteries together and with the bike, I should have spent less to get only the batteries and get the cables and plug separately. This is a scam.

Very good Barry the only thing it comes with the wrong connection to charge from AC And recommend to buy them all together but did not fit

I did quite a bit of research on weather these would be a PLUG AND PLAY option which they say it is. Wrong I spend $96 bucks on these none of the connections are correct and then they will not charge back to full with the charge system I have on my razor 350 electric dirt bike. Pretty upset as I and trying to get my son's bike back up and running and it's just been nothing but issues.

Works awesome and long lasting! My husband did have to use our original ends from our wiring harness and remove the ones that came with this because they weren’t the correct ends, but it wasn’t too big of a deal.