Sur Ron Battery 67v Marathon V2

Direct Swap, Power Increase, Super Long Range 3953Wh (65Ah Equivalent @60V)

More Volts & Higher Range on OEM Controller

8-10 MPH MORE SPEED (weight dependent)

12.5% MORE POWER (low down grunt)

MORE ACCELERATON

No Aftermarket Controller needed!!

Powerful and Only 16.5Kg
Tough Protective 316 Stainless Steel Case
Fully Protected BMS
*UK Warranty

Finance Available (T&C Apply)Apply Here

Shipping: UK (Free) Additional Shipping for Highlands and Islands +£30
EU land ship available, bank transfer only (20% VAT Removed)
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Cash on collection available by appointment

Power: Moderate (11 Kw 420A Phase)
Range: Very High (3953Kwh 263% Over OEM)
Height: Tall (373mm)

#1 Usable power density is increased from a standard battery 1500Wh (heavily restricted LVC of 54V and not 48V) to 3953Wh

#2 Range is more than doubled about 2.5 times the distance.

#3 Top speed increase (fully charged) for 8-10 MPH  improvement.

#4 Power increase of 12.5% and very noticeable increase in acceleration.

#5 Does NOT need an aftermarket controller or controller modification.

#6 Very simple to install (needs a battery lid hinge installation which we provide – and take 5 minutes to install – battery display goes on the battery compartment frame cover)

Sur Ron Battery 67v 3953Wh Marathon V2 11KW

This Sur Ron Battery achieves Long Range by utilizing the extra tolerance in your stock controller.

Power

This battery will work perfectly with the original Sur Ron standard Controller and give a power output of approximately 5.5KW (about 650Watts more than standard controller).

This battery is not to be used with a third party controller set higher than 160A DC or 10Kw Phase 420A.

We are offering an ASI BAC4000 set to 10,000W, so when you have more money available, a quick controller upgrade and more speed and acceleration is available with HUGE range.

Exoskeleton /Casing

We have upgraded the casing to marine grade 316 stainless steel, so absolutely no rust issues here! Super tough and powder coated inside and out.

Connectors

The main battery to controller connectors we use are the same type as used by Sur Ron to keep everything compatible. This allows you to swap your standard battery back should you wish. If you have a 2024 Sur Ron with the newer round connector, you may have to retro fit the original Sur Ron battery loom (this is easy and cheap to do).

2024 Sur Ron Bikes

Sur Ron in their wisdom have changed the battery connector for the 2024 model. It does not take as much  power and is very difficult to obtain. These connectors are not compatible with our batteries (or anyone else’s battery). The simple work around is to install a pre 2024 loom. This takes about 30 minutes and is simple to do.  If you then want to run your OEM 2024 battery, you will need to purchase an adapter. Most people sell their OEM battery to offset the cost of this much longer range and more powerful battery upgrade. The pre 2024 battery loom can be found here: https://www.electroncycles.com/product/surron-light-bee-battery-power-cable/

Some versions of the Sur Ron standard controller may go into limp mode if using this battery with no communication port (not using an aftermarket controller). This will need a very simple modification to the plug that normally connects to the battery. Please see the photo of the battery communication connector we supply.  This is effectively two pins that are crossed with a simple piece of wire with a spade connector.  Note the area circled in red in the photo.

Voltmeter

This Sur Ron Battery does not have an integrated voltmeter.  We supply a voltmeter that nestles in your battery lid.

Domestic Electrics

All your bike accessories are still powered. Some believe that not using the circuit breaker direct to the controller removes the safety of the circuit breaker. However, all our batteries have a full working BMS. Any power shorts or irregular current and the BMS shuts down.  This is much more sensitive and accurate than a mechanical breaker (you may note that the Sur Ron Ultra Bee does not use a circuit breaker and relies on the BMS alone).

Please note that on L1e Bikes an orange warning light may flicker on the main display and a small error code may appear.  There is no fix for this and a consequence of using an aftermarket battery.  Use the voltmeter we supply with your battery to keep track of the batteries state of charge – empty at 48V.

Specifications

Please note this is a long range battery primarily designed to power the OEM Sur Ron Controller and NOT high power aftermarket controllers (we do offer an ASI BAC4000 set up for this battery at 10kW). If set for aftermarket controllers, please observe the manufacturers specification specific to your product.  Exceeding the manufacturers recommendations could invalidate your warranty.

Fitting

Connecting To Bike