EBMX SurRon Ultra Bee Battery Upgrade [81.4v 73Ah High Power Battery]

Our Stage 3 Surron Ultra Bee Build now has a 5.9kWh capacity thanks to the addition of the enormous EBMX 81.4v 73Ah battery. When it comes to electric dirt bikes, the Ultra Bee has some of the best battery range we’ve ever tested. This might be the update for you if you want your Surron Ultra Bee to have the longest battery life possible.

With an EBMX X9000 controller, the 81.4v 73ah battery fits the Ultra Bee with a customized lid and allows you to run far more power than standard while maximizing range thanks to the bigger capacity battery.

The stock Ultra Bee battery weighed 48 pounds when we measured it. Using the same scale, the 81.4v EBMX battery registered at 56 pounds, meaning that we are around 8 pounds heavier with this larger battery. This was barely perceptible to us while we were riding the Ultra Bee. Although it feels heavier, this bike’s qualities remain mostly same.

There is a two-year warranty on these batteries.

Included in the bundle are:

Custom Molded Lid for Larger Battery: 81.4v 73Ah 22s High Power Battery with 12A Charger (White)
Compatibility with the SurRon Ultra Bee EBMX X-9000 Controller Adapter Kit (Separately Sold)

Please be advised that although this method works well, there is a very small chance that your fuse breakers may trip due to the charger’s minor over 10 amp demand, depending on the RCDs or RCBOs in your home and the cabling.

Please let us know in the notes if you particularly do not want the 15 amp plug, and we will custom attach a 10 amp plug instead. As a result, you won’t be able to use the quick charger, and it will take your battery about seven hours to charge fully.