Sur Ron 72v 46.2Ah “Konig” 3326Wh

£2,399.00 (price including VAT)

Sur Ron 72v 46.2Ah “Konig” 3326Wh

Out of stock


Sur Ron 72v 46.2Ah “Konig” 3326Wh

High Power Long Range 3326Wh

Molicell P42A 21700 Cylindrical Cells.

Full Bluetooth BMS (battery status).

UK Warranty

Now in a Tough Protective Stainless Steel  case powder coated black !

Fully Protected by BT BMS

Only Ship To UK Mainland – Sorry No: No overseas – International shipping

Free UK Shipping

These are very special order and only made in limited numbers.

This is the biggest and most powerful battery we make for Sur Ron. Recently tested in Full race conditions (Brushless Enduro at Ashdown MX)

Designed to run the ASI BAC4000 or ASI BAC8000 and Nuclear controllers  (any 72v capable controller) up to 330 Amps Peak  (phase 500A) and use on the Sur Ron Light Bee.

These are designed on our bikes that are set at 13500W.

If this battery is to be used by a third party controller the controller can not be set above 14000 watts (the BMS is 330A Peak).

This will not work with the original X Controller.

These power packs are designed for ultimate power supply and are 73.2% bigger watts hours (3326) compared to the 60V “Bypassed” battery (1920Wh) and 95% bigger than a restricted normal 60V battery. Able to give out more than 3 times the power (discharge -amps). The std battery although at 1930Wh is actually restrict through a limited volt range making it in effect 1500Wh (should go as low as 48v but restricted to 54V

The 72 46.2AH Sur Ron Battery 20S11P 72v  3326Wh Molicell P42A 21700cell,  with ANT Bluetooth BMS (works on IOS and Android for series monitoring) designed to fit inside the Sur Ron battery compartment. Because of the extra height (370MM). The Cells are genuine branded cells specifically designed for high output discharge and sustained high drain. Other inferior cells used in cheaper packs simply can’t deliver like these. Th UK retail price of these cells is over £9 each!!

The whole battery is fitted in  hand made stainless steel case designed to handle those inevitable and hopefully not painful “Offs” with hard off road rides and giving masses more protection. The casing is powder coated inside and out.


We have done our best to keep the battery as low as possible. We never want to sell a battery for the Sur Ron where the lid does not close. However, you simply cant cram this amount of cells into a bike without making some minor and simple alterations. We want our batteries to be able to swap over in less than 5 minutes. When we go Enduro racing with very long laps, we want as short a paddock stop as possible if required.

To fit the this battery we removed the battery  from the bike and then removed the very basic hinges for the battery compartment. Swapped in a front wheel bicycle skewer (we supply all this). It makes swapping battens really easy with the lid removed (takes 30 seconds). We also supply bolts and spaces to allow the lid fastener to reach the lock.


Weight 18.2KG
Cells Molicell P42A 21700 (220).
Bluetooth ANT BMS set at 330  Amps Peak.  Full battery protection including over discharge (shorts) over heating etc
Each cell with additional individual wrapping for added protection.
Additional layers of fiber board, Kapcon tape, heat shrink with internal/external powder coated stainless steel sealed box to give maximum protection and insulation.
Double sandwich configuration using 0.2mm pure welded nickle sheet.
Bluetooth BMS giving individual series condition with balanced charging. We do not recommend altering our settings as may invalidate your warranty.
An integrated handle for lowering the battery in and out.
Charging port via an XT60 connector.
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.
Battery is in a super tough stainless steel case with handle, designed to keep your battery safe in an accident and waterproof except immersion or direct jet washing at the cable exits.
THIS KIT DOES NOT INCLUDE A CHARGER. Chargers can be found here (10A MAX):
From our tests, not all Sur Ron frames are exactly the same. Sur Ron recently seem to have let their quality control down a bit. On our mark two prototype (pre releases) we suddenly found that our case did not fit in the 4th bike we tested it in , Sur Ron hand not cleaned the battery compartment frame welds. We then went back to the drawing board and re-designed the case.
The new and for sale case has flitted all 4 test bikes. Its a snug and tight fit to maximize the cell capacity and keep the battery as low as possible. It is very slightly possible that there is anther bike out there with poor welds. In this case there is a very  small possibility that your bike welds will need cleaning up with a dremmel/grinder, although with this latest design we have not found this in over 300 installs. This is a simple job and causes no damage to the bike. I would like to make the point clear that we do not expect this to be needed  by 99.9% of our customers the battery should slot straight in.

Please ALSO note, these are genuine new cells and made up into complete battery specially designed by us, built at our oversees  factory or here in the UK by our dedicated battery builders. We simply can’t buy a single battery, Thanks to PayPal fees, shipping and taxes (hate VAT) the markup is minimal!

When connecting the battery to the bike and to avoid a spark. Turn the red trip switch on the bike to off. Connect the older original power cable and then turn the red trip to on. Then connect the new power leads. Removing battery has no special order.

Charging: First time charging is VERY important. Always connect the charger to the battery with the charger powered up from the mains. This will stop a “Connection Spark”. The battery needs a “Balance Charge” on first charge. Please charge for 12 hours first time.

* 6 Month Warranty is for manufacturing defaults and does not cover miss use or accidental damage. These units are extremely strong and robust and will not let you down unless abused. We undertake warranties here in the UK. We take the pain!

Please note, Lithium batteries are considered hazardous and due care and attention should be taken. Although these cells are in wide use, and professionally manufactured in a purpose built factory; because of the power of the battery, we strongly recommend that precautions are taken. We do not recommend charging inside the family home and charging should be supervised. We take no responsibility for misuse. These batteries are thoroughly tested (full discharge and charge cycles at the manufacturing stage and also pre-delivery). These are not DIY or amateur built devices.

Please note, charger is not supplied but can be found here:+

** Bike not included


Buyer releases Electron Cycles or any person trading on or behalf of the business known as Electron Cycles from any liabilities, therein known as Electron Cycles (expressed or implied, arising by law or otherwise) that may occur from the use of products sold by Electron Cycles and purchased by Buyer. These products are being sold for “Off Road/Competition Use” only and may be used only on two wheel vehicles (bicycles, electric bicycles, two wheel electric powered vehicles) used solely for “Off Road/Competition” (off-road being defined as a private land with land owners permission and not public highway or byway). The Buyer also recognises that Lithium batteries are classed as hazardous and should not be: stored, used, charged in place, facility any area that is not fire proof or safe to do so. That batteries should not be taken into the family home, office, workplace or school place. No other applications are intended or implied. The Buyer of product sold or provided by Electron Cycles acknowledges and agrees that Seller disclaims any warranty and expressly disclaims any liability for personal injury or damages or any damages to vehicle, expensed occurred, personal property or third persons. Electron Cycles will uphold the warranty of the manufacture of the product sold for a period of six months from date of purchase from manufacturer defect. In the event a manufacturer’s warranty exists, it is agreed and stated that Under no circumstances shall the seller or manufacture be liable for any labour charged or travel time incurred in diagnosis for defects, removal, or reinstallation of this product, or any contingent expenses.







Additional information

Weight 19.99 kg
Dimensions 50 × 30 × 25 cm