, please spend more than £50Sur Ron 81v Battery 4070Wh 50Ah Trojan EVO 32Kw High RPM
Expect Speeds Circa 80+MPH
Charger Included
EBMX, VTB, Torp & Nucular Controller Compatible
High Power Long Range 4070Wh
EVE 50PL CCC 21700 Cylindrical Cells
Tough Protective 316 Stainless Steel Case
Fully Protected BMS
Discharge QS8 Connectors
UK Support & Warranty
High Volts = High RPM = Less Amps = Less Heat!
Shipping: UK (Free) Additional Shipping for Highlands and Islands +£30
EU land ship available, bank transfer only (20% VAT Removed)
For EU please email: [email protected]
Cash on collection available by appointment
Power: High (32Kw Peak)
Range: Very High (4070Kwh 271% Over OEM)
Height: Tall (375mm)
Battery Activation Required On Delivery
On delivery, please send us a request to have your battery activated.
This will also be regarded as confirmation that your battery has been received.
Sur Ron Battery 81v High RPM REALLY ROCKS!
Watch the battery in action: https://youtu.be/isDVDPZH9Do?si=JPyXUjmj-WvZNVr3
The Sur Ron 81v Battery 4070Wh 50Ah Trojan EVO 32Kw High RPM 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. The Samsung 50s has had quite bashing from some online geeks (unfairly so) so we have now introduced a much more powerful and slightly more expensive cell. The full production and tested (and passed ) EVE 50PL CCC high capacity extreme discharge cell. Hence the price has risen but so has the performance. These are the cells that are (unfortunately) being used in most of the drone warfare arenas. Designed to give huge punch and power. They make an excellent high power battery.
Here’s a great review from a respected blogger (the older less powerful version): https://www.instagram.com/reel/DM8VLbSoKqd/?igsh=MXg2YW40MzM5em15Yw==
Or here on YouTube: https://youtu.be/isDVDPZH9Do?si=w1NW4rK2s2jf9Fip
Description
Sur Ron Battery 81v 22s 4070Wh Trojan EVO High RPM EVE 50PL CCC is capable of peak 25kW power ( peak discharge for 51 seconds until cut off on mosfet temp protection).
20kW continuous at 250A discharge.
Riding Range: 181.5 km (laboratory result measured at the average speed of 25 km/h)
Battery Pack: Grade A 220 * 21700 Cells (EVE 50PL CCC, volts difference less than 0.01V after 10,000Ah cycles)
Battery Cell Lifespan: Minimum 80% of capacity after 3 years
Standard Power: 20 kW/ 250A
Peak Power: 32kW/300A Peak (550A peak BMS for 11 seconds set to 400A peak for this battery)
Voltage Drop: Battery voltage drops 3V at 250A
Cells
There are the amazing EVE 50PL CCC 21700 x 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
Sur Ron Battery 81v 22s 4070Wh Trojan EVO High RPM with a continuous output of 20kW and burst power of 32kw. Power is limited due to the single power cables and connector. More extreme power can be found with the 81v Evolution battery
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
Cell Specification
Model: 50PL CCC
Size: 21700
Chemistry: INR
Nominal Capacity: 5000mAh
Nominal Voltage: 3.6V
Discharge: 125A Continuous per cell Max 45A
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, Slowly connect the qs8 connector, this will send a restricted current to the controller to wake it up. Then pushing the connector all the way home, will allow full current – You will notice looking down the female connector, that there is a red seal half way down. This is where the restricted part of the connector changes to the full power part of the connector. All this to reduce in rush to the bikes electronics.
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.
Charger Included
This Battery will not work with an original standard Sur Ron Controller
Regen & High Power Set Ups
Running regen on high power set ups can cause damage to both the controller and your battery. The motor can give massive power spikes if the motor is quickly turned into a generator from wheel spin and re-engagement (wheelies, jumps, hitting pot holes hard etc.). The battery is designed to give high power and BMS mosfets struggle to suddenly have such a large reverse current fed into them.
We have seen well known third party controllers give damaging current as the controllers become unreliable under reverse polarity caused by their regen settings. “Motor Off” and thumb regen should be set low or better still turned off. If you are running extreme power like 20+ KW (250A, regen must be turned off. Failure to do so may invalidate your warranty.
Bike Not Included
Warranty
For our Warranty terms, please check here: https://electroncycles.com/warranty-policy/
Disclaimer is available here: https://electroncycles.com/terms-and-conditions/
