Sur Ron 81v 50Ah 17KW Trojan EVO Battery
with Atom Controller
80+ MPH (burst)
Perfect for Standard Light Bee Motors
Higher Volts, Higher Amps Higher RPM+ Higher Speed !
Including Charger and High Power Loom
All taxes and import duties paid and free UK shipping – with you in 3 days!
Full UK Support & Warranty
Shipping: UK (Free)
EU land ship available, by invoice only (20% VAT Removed)
For EU orders please email: [email protected]
Cash on collection available by appointment
For stock Light Bee motors only
Controller only available in black
Power: High (17Kw 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 81v 50Ah 17KW Trojan EVO Battery with Atom Controller
Description
Did you ever get sick of seeing mods just skyrocket in price? We wanted to supply a tough robust reliable controller and battery option that wouldn’t break the bank (too much). A kit that gives the standard bike with the standard motor, real usable performance without all the bells and whistles and extra costs that comes with stuff you really don’t need or want. Does a REAL rider need wheelie control? Does a real rider need a big display to say how much power he is using (should be looking at the trail) or a gazillion different power modes? We think not.
The controller bolts straight onto your bike and uses the original LBX display that gives Eco and Sport mode. The only difference is sport mode with a 81v battery will hit 80+mph and lift the front wheel any time you want (3 times power over standard).
The controller does have a very basic app, which is primarily used for the original set up: motor tune – throttle tune and battery set up. Its a bit fiddly so if you don’t want to do it, we will! We can remote onto your bike free of charge via a remote session (via your mobile device with you controlling and your phone). Think of the kit like this, the same set up you had a before (no gimmicks), just loads MORE power.
A standard Sur Ron has around 1500Wh of range. The Trojan EVO is 3960Wh. That’s over DOUBLE the range!!!
For the Trojan EVO battery, just like its other brothers in the Electron Cycles battery List, we have used the best, super tough, 316 marine grade stainless steel casing, powder coated inside and out, it has the big ANT BMS, two QS8 6AWG cables and pure copper sheet connections. Supplied with a high power bike side loom and fused high power cable.
We don’t make a huge amount of money out of these, but all the same same, buying as a Kit (battery and controller) we have shaved the price down even further.
Description
Sur Ron Battery 81v 22s 4070Wh Trojan EVO High RPM EVE 50PL CCC is capable of peak 32kW power
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.
Power
This is a Sur Ron Battery 81v 50Ah 40kw Trojan EVO. With extreme bursts of 32Kw and a BMS limited 250A continuous output. A battery with the ability max speeds circa 80MPH and pure wheel popping, stomach clenching acceleration
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. Designed not to rust in salty sea water.
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.
Voltmeter
This Sur Ron Battery does not have an integrated voltmeter. We supply a voltmeter that nestles in your battery lid.
Domestic Electrics
With our replacement high power bike side loom, all your bike accessories are still powered. Some believe that not using the circuit breaker on the second fused loom, that goes direct to the controller, removes the safety of the circuit breaker. However, all our batteries have a full working BMS and the non circuit breaker loom is protected by the inline fuse we include. Any power shorts or irregular current and the BMS shuts down or the fuse blows. 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 50Ah 4070Wh Trojan EVO
Cell Specifications
Model: 50PL CCC
Size: 21700
Chemistry: INR
Nominal Capacity: 5000mAh
Nominal Voltage: 3.6V
Discharge: 45A Continuous per cell Max 125A
Positive: Flat/Button Top/Tabs (please select)
Rechargeable: Yes
Dimensions: 21.1mm x 70.4mmDimensions: 21.1mm x 70.4mm
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”. The battery needs a “Balance Charge” on first charge. Please charge for 12 hours first time. Always charge your battery in a safe place and never unsupervised.
Charger Included
This Battery will not work with a 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/










