

Race 81v 50AH Sur Ron Light Bee Battery
550A peak – delivering up to 60kW peak power and 25kW continuous, this battery pack is built for complete adrenaline junkies. (Power output can be selected in the options.)
Hand-built in Germany from Grade AA+ 21700 cells, copper-welded (NO nickel!). Active BMS, AWG6 silicone phase cables, and QS8 antispark connectors.
Pre-Order yours now. Custom made to order - production time 2-3weeks.
PLEASE NOTE:
For off-road/race use only – not road legal
Charger not included – we offer high-quality adjustable chargers from 0–15A and 0–40A
DIY installations are at your own risk
Always charge in a dry, ventilated, and supervised area
Professional installation is highly recommended
Voltage | 81v |
Capacity | 50AH (3855 Wh) |
Peak Power | 40-60 kW discharge |
Weight | 18kg |
Protection Rating | IP65 |
Enclosure | 1.5mm stainless steel |
Battery Management System | 650A rated |
Bluetooth Interface | App 📲 Android & IOS |
Warranty Coverage | 1 year |
Shipping Availability |
UK & EU stock |
📦 INCLUDED WITH PURCHASE:
Discharge phase cables replacment harness (6AWG with QS8 battery connector)
125A high-current upgraded breaker
Lid extension hardware
(Needed only if you're not using our EVF seat extenders - the battery is 25mm taller than stock)
Pump wedge to prevent battery movement
Full remote support from one of our engineers to assist with installation & programming questions.
very good stuff
I ordered the tc500 then got a message from evfreaks that it was out of stock and would I like to upgrade to tc1000 with a discount for the mistake so I did an it is wicked , so thanks ev freaks very happy with my purchase
A nice bit of kit
Top products, quick delivery and responds!! Very helpfull for everything...best shop for surronaddicts!! again and again
Worth every penny quick response and Amazing service 5 stars
Still got the same jolty issues and my bike only goes 50mph now . Used to do 70mph no prob
very good stuff
Says it will be shipped 2-4 days rest assured yet it’s been 4 days and it’s still awaiting shipping
I ordered the tc500 then got a message from evfreaks that it was out of stock and would I like to upgrade to tc1000 with a discount for the mistake so I did an it is wicked , so thanks ev freaks very happy with my purchase