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VTB Battery EVO GT 72V50Ah 9C (Surron Light Bee)

Original price was: $2,999.00.Current price is: $2,899.00.

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Description

After years of research on riders’ major complaints, VTB strives to improve their riding experiences by upgrading the battery to larger, safer, and lighter. Our batteries outcompete others in price, system reliability, fireproof and waterproof features, volume, and lifespan.

Surron Light Bee EVO GT: Battery Upgrade for Surron Light Bee

Model: VTB7250-9C-QF

Capacity: 50Ah

Voltage: 72V

Quick Charging Time: 1h

Max Charging Current: 50A (1C) with the support of VTB fast charger (XT90)

Driving Range: 165 km (laboratory result measured at the average speed of 25 km/h)

Battery Pack: Grade A 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 10 seconds set to 400A peak for this battery)

Voltage Drop: Battery voltage drops 7V at 250A

More Effective BMS: A 22-pcs HYG017N10 MOSFET BMS enables 10 seconds of 550A peak discharge while limits heat generation under 18W at 250A discharge. Custom design of BMS maintains great stability under high-current pulse and protects the MOS from the risk of short circuits.

 

 

View detailed data through the Bluetooth APP

 

 

 

 

 

 

 

Specifications

Weight: 18.2 kg

Dimensions: 154x138x385mm

Restrained Heights: The battery fits into the original battery tank, pushing up only 2 cm

Tabs Material: Traditional nickel tabs are upgraded to CNC (Copper-Nickel-Chrome), improving the discharging efficiency by restricting its resistance to 0.1mΩ.

Further Description

About the Charging Port

​​Our goal for choosing a charging port is, firstly, to achieve that accessibility as the original factory battery. Charging can happen without removing the battery from the vehicle for a similar height. We also want a quick recharge, 1 hour fully charged. As for safety, a rubber plug needs to be in place to prevent entry of mud and sand. The plug is required to be under full coverage to avoid the risk of electric shock.

Accordingly, XT90 charging port became our go-to option both for its extra thin port and continuous current output at 50A. The only imperfection would be that the official XT90 only provides a male panel-type rubber plug which carries higher security concerns. We aspired to have the perfect port, which drove us to develop a female XT90 plug with rubber cap while bearing a significant cost increase. That’s how we got our ideal charging port.

About the Color LCD

The color LCD screen is a unique feature but under realistic consideration to address the most common issue riders encounter: sudden power loss without knowing the cause. There could be various roots, high-temperature protection, short-circuit protection, low-temperature protection, or other faults. A shortcut to display riders with fault feedback became our goal. It connects directly with the Battery Management System (BMS), showing State of Charge (SOC) and other relevant data that helps locate the problem. We only made it into a touch screen and whenever it is over 0A current on the screen surface to avoid unintentional turn-off. So it functions in muddy and wet conditions during the race.

Quick Charging

The charging port supports a maximum of 50A, so it’s essential to have a dedicated charger that can deliver that power. Therefore, we have even custom-made a compact 50A charger that can provide 50A output at 220V (or 25A at 110V). Feel free to place the order on another page.

Charger Giveaway

We have also packed a 15A outdoor charger with the battery for emergency usage. The factory original charger ensures reliable support whenever other chargers fail.

Why 50G and 50S?

By comparing several top-tier battery cells in the market, including Samsung 50E, 48X, 50G, 50S, 40T, and Molicel P42A, we came to a conclusion that 50S outperforms others in tests on voltage drop during discharge, heat generation, lifespan, and unit price. P42A might have an advantage in exhibiting lesser heat, but in a continuous discharge scenario, the motor would overheat before the battery does. 50S, in contrast, compensates its heating issue with larger capacity.

Why 45Ah and 50Ah?

The founder has surrounded himself with off-road riders. After extensive tests, we found that the ideal capacity was 45Ah. Constraining the weight at 16.7kg, the battery maintains the balance of the vehicle and provides sufficient capacity for lightweight off-road riding. The 50Ah version is designed for road riding which stresses less about weight, but more about power and range, while it weighs 18.2kg.

BMS Protection: BMS protection system blocks 12 battery damages during charging and discharging. Its real time condition shows both in the App on your devices through bluetooth connection and on color LCD.

Waterproof: IP67 rating (battery discharge cells sealed with Epoxy Resin provide a comprehensive water-proof level of outdoor riding)
Connectors: Two updated RAS 6808 connectors allow continuous current at 240A and peak current at 480A, replacing the Sur-Ron REB6808 200A​​ connector.

Spark Prevention: The battery is designed with a holding-down power button to substitute the breaker (air circuit)/ air switch to avoid arc or spark.

VTB Interactive Color LCD: The color display shows real time data such as SOC, Volts, Amps, Power and temp from BMS feedback. Easier for riders to locate problems when the battery shuts down. Accidental touch protection turns on whenever it is over 0A current on the screen surface to avoid unintentional turn-off.

Mini Charging Port: The built-in XT90 port is extra thin so charging can happen while the battery sits in the bike, but it allows ultra fast input at 50A continuously. The rubber cap of the port provides full coverage for waterproofing.

Product advantages:

Brand Model Cell Capacity

Ah

Capacity

Wh

 

Maximum current

 

 

 

Maximum power

 

 

 

Continuous current

 

 

Weight  

Car hood raised

 

 

Plug Other accessories

 

 

Standard charger

 

 

VTB VTB7245-9C-QF Samsung 50S 45 3330 400A 28.6kw 225A 16kg No elevation Original factory dual plug Main Line 15Awaterproof 630RMB
VTB VTB7250-5C-QF Samsung 50G 50 3700 280A 21.1kw 200A 18kg No elevation Original factory dual plug Main line+bottom plate+gasket

 

 

15Awaterproof 630RMB
VTB VTB7250-9C-QF Samsung 50S 50 3700 450A 31.5kw 250A 18kg No elevation Original factory dual plug Main line+bottom plate+gasket

 

 

15Awaterproof 630RMB
VTB VTB7250-9C-TL Samsung 50S 50 3700 450A 31.5kw 250A 18kg No elevation Original factory dual plug Main Line 15A waterproof630RMB
VTB VTB7250-5C-TL Samsung 50G 50 3700 280A 21.1kw 200A 18kg No elevation Original factory dual plug Main Line 15Awaterproof 630RMB

 

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VTB Battery EVO GT 72V50Ah 9C (Surron Light Bee)VTB Battery EVO GT 72V50Ah 9C (Surron Light Bee)
Original price was: $2,999.00.Current price is: $2,899.00.
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