Marsen Energy 36V 17500mAh Carbon GT Electric Skateboard Battery Upgrade

Marsen Energy Evolve Carbon GT 15Ah battery upgrade
Marsen Energy Evolve Carbon GT 15Ah battery upgrade BMS mkII install
Marsen Energy Evolve Carbon GT 15Ah battery upgrade spacer
17.5Ah Evolve CGT

Brand: Marsen Energy

Model: 17500mAh Carbon GT

Product Code: 0044 10S5P 17.5Ah

Availability: In Stock

Marsen Energy 36V 17500mAh Carbon GT Electric Skateboard Battery Upgrade. It uses LG Chem MJ1 3500mAh cells in a 10S5P configuration to provide up to 50 amps continuous or 80 amps for short periods ( 2-3 mins) . The nominal voltage is 36V with a charge voltage of 42 volts so it can be charged using our standard 2A charger or the fast 4A charger. The cells are spot welded together with Nickel strips using a commercial grade 15KVA inverter battery welder for strong quality welds. The 5P sections are joined with braided copper wire to increase flexibility of the pack as well as reducing the width of the pack. It has an 11 wire JST connector for BMS balancing (compatible with Evolve BMS) The 12AWG silicone power leads are fitted with T-style Deans connector and a high current clamp connector for a solder free fast connection so batteries can be changed in the field. We can supply a custom designed plastic spacer for the controller heatsink to provide extra space to fit the larger battery as well as extra space for cooling. Spacer

Please allow up to 10 days lead time as batteries are made weekly from fresh cells to ensure the highest quality product. Our batteries are not stored for weeks at a time. Special requests for different configurations or plug types can easily be arranged.

The shipping price on these batteries includes full insurance to cover for the unlikely event of damage or loss during freight. 

Voltage Sag

One of the main issues with the some electric skateboard batteries is voltage sag when under high load such as going up hills. By using a higher rated cell the voltage sag can be reduced.  For a more detailed explanation of voltage sag see Jay Boston's youtube clip. Voltage Sag


 Marsen Energy 36V 15000mAh Carbon GT Electric Skateboard Battery Upgrade


Battery model ME-CGT17500
Nominal Capacity 17500mAH
Nominal Voltage 36V
Source resistance  
Cell type LG Chem MJ1
Cell configuration 10S5P
Cell quantity 50
Discharge Voltage 25V
Charge Voltage 42V
Rated discharge Current 50A
Max Discharge Current (<10s) 80A
Standard charge Current 4A
Fast charge current 8A
Charge temperature range 10 to +45°C
Discharge temperature range -20 to +60°C
Storage temp range -20 to +50°C
Battery dimensions 465mm x 140mm x 19.5mm
Charge cycles 300+
Weight 2.5kg

 Marsen Energy will provide a replacement battery if you prove that:


  • The battery pack cannot be charged or discharged within the warranty period (6 months)

  • There is chemical leakage

  • Capacity is less than 80% of rated capacity in the first 6 months.


The following are excluded from warranty:


  • Unauthorized dismantling, modification, conversion of the battery pack

  • Minor tears or scratches on the battery pack skin

  • Damage caused by accident(s) or collision(s)

  • Using a charger not approved by us

  • Not using the battery in accordance with storage and operation instructions.