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Yorkshire's #1 E-Bike Specialist!

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Electron Cycles Sur Ron 81v Battery 4070Wh 50Ah Trojan 25Kw High RPM + Charger

Electron Cycles Sur Ron 81v Battery 4070Wh 50Ah Trojan 25Kw High RPM + Charger

Regular price £1,999.00 GBP
Regular price £2,599.00 GBP Sale price £1,999.00 GBP
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COMPATIBLE WITH:

SUR RON LIGHT BEE

    View full details

    Description

    Sur Ron Battery 81.4v 22s 4070Wh 50Ah Trojan 9C High RPM Samsung 50S

    Charger Included

    EBMX, VTB, Torp & Nucular Controller Compatible

    More Volts Equals: More RPM

    High Power Long Range 4070Wh
    Samsung 50s 21700 Cylindrical Cells
    Tough Protective 316 Stainless Steel Case
    Fully Protected BMS
    Parallel Discharge Using Supra D6 and QS8 Connectors

    Power: High (32Kw)
    Range: Very High (4070Kwh 271% Over OEM)
    Height: Tall (375mm)

    Battery Activation Required On Delivery

    On delivery, please contact Electron Cycles for activation of your battery. 
    This will also be regarded as confirmation that your battery has been received.

    Sur Ron Battery 81v High RPM REALLY ROCKS!

    Sur Ron Battery 81v 22s 4070Wh Trojan 9c High RPM Samsung 50S Really rocks, because an electric motor spins so many times per volts. Then add more volts and you get more spins (RPM) and more top speed. But here is the geeky and cool bit (literally): Amps create heat so the less amps you use, the cooler stuff runs. Heat kills electrical components as the heat literally melts soldered contacts internally, insulation burns off and glues melt.

     

    Heres a great review from a respected blogger: https://www.instagram.com/reel/DM8VLbSoKqd/?igsh=MXg2YW40MzM5em15Yw==

    Description

    Sur Ron Battery 81v 22s 4070Wh Trojan High RPM Samsung 50S  is capable of peak 32kW power ( peak discharge for 51 seconds until cut off on mosfet temp protection).

    18kW continuous at 250A discharge runs for 4 minutes and 16 second continuous load until cut off on mosfet temp protection.

    Riding Range: 181.5 km (laboratory result measured at the average speed of 25 km/h)

    Battery Pack: Grade A 220 * 21700 Cells (Samsung 50S, volts difference less than 0.01V after 10,000Ah cycles)

    Battery Cell Lifespan: Minimum 70% of capacity after 3 years

    Standard Power: 19.2 kW/ 250A

    Peak Power: 32kW/250A Peak (550A peak BMS for 11 seconds set to 400A peak for this battery)

    Voltage Drop: Battery voltage drops 6V at 250A

    Cells

    There are 220 cells in this battery and all have internal resistance. The more resistance, the more heat they produce, until they start to damage. So with this low resistance, they are able to supply enormous amounts of power without over heating.

    Power

    This is a Sur Ron Battery 81v 4070Wh Trojan High RPM Samsung 50S

    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 Sur Ron battery to controller and battery to bike connectors we use are a  QS8 on a heavy duty 6 AWG cable. This allows higher power flow and less resistance than a standard cable and connector. We supply a free upgraded high power loom with the battery.

    Domestic Electrics

    This means 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, for example that the Sur Ron Ultra Bee does not use a circuit breaker and relies on the BMS alone).

    Fitting

    Fit the high power cable we provide to directly replace the OEM cable that came with the bike. We supply the battery lid spacer and aluminium hinges.

    Specifications for Sur Ron Battery 81v 4070Wh Trojan High RPM Samsung 50S

    Weight 19.2KG
    Cells Samsung 50S 21700 (220).
    BMS set at 400 Amps Peak.  Full battery protection including over discharge (shorts) over heating etc.
    Each cell with additional individual wrapping for added protection.
    Additional layers of fibre board, Kapton tape, heat shrink.
    Stainless steel 316 grade sealed casing/exoskeleton with internal/external powder coated stainless steel sealed box to give maximum protection and insulation.
    Pure copper sheet for connections (not Nickle sheet)
    Bluetooth BMS giving individual series condition with balanced charging. We do not recommend altering our settings as this may invalidate your warranty.
    An integrated cord handle for lowering the battery in and out.
    Charging port via an XT60 connector.
    Battery lid hinge extenders for Sur Ron.

    Cell Specification

    Brand: Samsung
    Model: 50s
    Size: 21700
    Chemistry: INR
    Nominal Capacity: 5000mAh
    Nominal Voltage: 3.6V
    Discharge: 25A Continuous per cell Max 30A
    Positive: Flat/Button Top/Tabs (please select)
    Rechargeable: Yes
    Dimensions: 21.1mm x 70.4mm

    Connecting To Bike

    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 the battery has no special order.

    Battery Charging

    First time charging is VERY important. Always connect the charger to the battery with the charger powered up at the mains first. This will stop a “Connection Spark”.  Always charge your battery in a safe place and never unsupervised.

    6A Charger Included

    Upgraded charger available here: https://electroncycles.com/product/charger-81v-92-4v-12a/

     

    * This Battery will not work with an original standard Sur Ron Controller

    *Bike Not Included

    Shipping

    Orders placed before 11am are dispatched the same day. If your order is for an assembled bike it may take longer due to a build slot needing to be allocated. Delivery options available from 24 hours to 5 days.

    Delivery days are Monday to Friday

    Electron Cycles Sur Ron 81v Battery 4070Wh 50Ah Trojan 25Kw High RPM + Charger Electron Cycles Sur Ron 81v Battery 4070Wh 50Ah Trojan 25Kw High RPM + Charger Electron Cycles Sur Ron 81v Battery 4070Wh 50Ah Trojan 25Kw High RPM + Charger Electron Cycles Sur Ron 81v Battery 4070Wh 50Ah Trojan 25Kw High RPM + Charger Electron Cycles Sur Ron 81v Battery 4070Wh 50Ah Trojan 25Kw High RPM + Charger Electron Cycles Sur Ron 81v Battery 4070Wh 50Ah Trojan 25Kw High RPM + Charger Electron Cycles Sur Ron 81v Battery 4070Wh 50Ah Trojan 25Kw High RPM + Charger

    Testimonials

    James W., Manchester
    Verified Purchase

    Go Off Road is my go-to for off-roading accessories! Top-quality gear and bikes. Excellent service and fast delivery. Perfect for exploring rugged UK trails!

    Emily H., Bristol
    Verified Purchase

    Absolutely love the selection at Go Off Road! Their helmets and accessories are top-notch. Reliable, durable, and made for true adventurers. Highly recommend them!

    Tom R., Glasgow
    Verified Purchase

    Purchased a dirt bike and accessories from Go Off Road – fantastic experience! Great prices, superb customer service, and everything was delivered on time. Will buy again!

    Sarah P., London
    Verified Purchase

    Go Off Road has everything I needed for my off-roading adventures. Brilliant range, competitive prices, and great customer support. A must-visit for bike enthusiasts in the UK!

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    VISIT OUR WAKEFIELD SHOWROOM

    Unit 16, Bizspace (Headway)
    Business Park, Thornes Mill,
    Wakefield WF2 7AZ

    PHONE:  0330 311 0854

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    Go Off Road Limited is a credit broker, not a lender, authorised and regulated by the Financial Conduct Authority (firm reference number: 14185869). We work with a carefully selected panel of lenders, including Snap Finance (firm reference number: 741813) and Humm (firm reference number: 954478), both of whom are authorised and regulated by the Financial Conduct Authority. You are not obligated to use our suggested lenders and are free to explore and secure financing independently, which may offer better terms elsewhere. We do not charge fees or receive commissions for our services. Credit is subject to age, status, and affordability. Borrowing more than you can afford or failing to make payments on time may negatively impact your financial status and ability to obtain credit.

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    Electron Cycles Sur Ron 81v Battery 4070Wh 50Ah Trojan 25Kw High RPM +
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