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Sur Ron Ultra Bee Battery - The Mega 76


Shipped within 25 days


Our 76V 75Ah Sur Ron Ultra Bee battery is all about uncompromising performance: it offers insane power and practically limitless autonomy.

With a whopping 25kW of power and 140% as much capacity as the stock battery, this pack is a total game changer.

Not only will our Ultra Bee battery give you wings with its 25kW of power, it also opens the doors to uncharted territory with close to 6000Wh of capacity.

Shipping and returns

We ship worldwide (batteries are limited to Europe). Products indicated as being in stock are shipped in less than 72 hours after you place the order. Our warehouse is located in France, so transport cost and time may vary depending on the delivery country.

Changing one’s mind is human. That’s why you have up to 30 days after the delivery of your order for a return. Just let us know and we will take care of all the details.


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We offer different payment methods to accommodate your preferences: Credit Cards, PayPal, Wire Transfer & Klarna.

Your order is automatically validated as soon as the payment is confirmed. In case of a return, your refund goes to the payment method used for the order.

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Introducing The MTO Mega 76, a 76V 75Ah Sur Ron Ultra Bee Battery meticulously crafted to steadily deliver 25kW, while offering a remarkable 140% increase in energy density compared to the stock pack.

Manufactured with care in France, our battery features top-grade LG cells, renowned for their enduring power output and sustained capacity retention, assembled with top of the line components, all ensuring long-lasting performance in any conditions.

Battle-tested by our team in the harshest conditions, from icy cold to blistering heat, rest assured it’s built tough to withstand whatever you’ll throw at it.

Encased in a sleek, stealthy black stainless steel casing with an integrated handle, our Sur Ron Ultra Bee battery not only offers unparalleled protection but also portability for your on-the-go lifestyle.

Extended Range

Supercharge your adventures with our 76V 75Ah Ultra Bee battery, nearly doubling the range compared to your stock battery. Whether conquering technical enduro trails or cruising at high speeds, this pack ensures a reliable power supply for your adventures.

For instance, if your typical ride covers 50km with the stock battery, you can safely assume to ride for 90km or more with the Mega 76. The question is: are you up for the challenge?

High Power Performance

Built to complement high-power controllers, our Sur Ron Ultra Bee battery consistently delivers 25kW of raw power.

The 76V configuration guarantees compatibility with all aftermarket controllers (Torp TC500 & TC1000, Nucular, EBMX X9000, ASI BAC…), maintaining ideal temperatures for the controller and motor while enabling higher motor RPMs.

While top speed and torque may vary based on the controller you have and the parts you installed, our battery offers ample power for thrilling rides.

And that’s not all, our batteries feature Bluetooth BMS technology, allowing real-time monitoring of battery parameters via your smartphone for added convenience.

Safety Features

Equipped with a programmable Bluetooth BMS, our batteries meticulously monitor all pack parameters to ensure optimal performance and safety. From cell voltages to core temperature, every aspect is finely tuned to maximise efficiency without compromising safety.

The BMS constantly monitors voltage, current and temperature in order to instantly respond to any abnormal situation (ex. controller malfunction) or rising temperature, mitigating potential damage and ensuring your peace of mind during every ride.

Technical details

Cells A-grade LG INR 21700 cells
Nominal Voltage 76V
Nominal Capacity 75Ah (5700Wh)
Power Output Up to 25kW
BMS 300A bluetooth BMS
Cell connections 0.3mm pure copper busbar
Casing Black Stainless-steel case with integrated handle
Cycle Life 500 cycles with 80% of nominal capacity
Weight 25kg
Compatibility All 76V compatible controllers and chargers (21s so 88V fully charged)
Modification To maximize capacity, this pack needs the replacement of internal plastics by the MTO provided pads.

NB: please note that the stock controller only works with the stock battery as it needs a signal from the BMS

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