Marsen Energy 36V 21Ah (10S6P) Li-ion Skateboard battery

21Ah battery

Model: ME-CGen2-21

Product Code: 2017

Availability: In Stock

Marsen Energy 36V 21Ah (10S6P) Li-ion Skateboard battery suitable for DIY or the Evolve Gen2 Carbon (single motor) Electric Skateboard. It uses LG Chem MJ1 3500mAh cells in a 10S6P configuration to provide up to 60 amps continuous or 100 amps for short periods. The nominal voltage is 36V with a charge voltage of 42 volts so it can be charged using Evolve standard or fast charger or Marsen 4A fast chargers. The cells are spot welded together with 99.9% pure Nickel strips using a commercial grade 15KVA inverter battery welder for strong quality welds. The 6P 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) BMS not supplied, BMS from existing Evolve battery required for Gen2 upgrade. The 12AWG silicone power leads are fitted with T-style Deans connector and a high current clamp connector for a solder free fast connection. Alternative connectors available (XT60, XT90)

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

# Power capacity according to the specifications of the cell manufacturer. The power capacity available during operation is lower to increase service life.


There is currently a 4 week lead time from ordering.

Battery model ME-CGT21
Nominal Capacity 21AH
Nominal Voltage 36V
Source resistance  
Cell type LG Chem MJ1
Cell configuration 10S6P
Cell quantity 60
Discharge Voltage 25V
Charge Voltage 42V
Rated discharge Current 60A
Max Discharge Current (<10s) 100A
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 570mm x 140mm x 19.5mm
Charge cycles 500+
Weight 3kg


# Power capacity according to the specifications of the cell manufacturer. The power capacity available during operation is lower to increase service life.

Marsen Energy Lithium-ion Battery Limited Warranty 


 This limited warranty (hereinafter “Warranty”) specified below applies to Marsen Energy Lithium-ion batteries.

1. Purpose 

The primary purpose of this Warranty is to clearly define the matters related to warranty policy of Products. 

2. Warranty Condition 

If our testing determines the battery is defective we will replace it, however the costs of delivering it to the warranty location and collecting it and any replacement are yours.

2-1. Warranty Period 

The Warranty for the Products is valid for 6 months from the purchase date (the “Term of Warranty”). 

2-2. Limitation of Warranty scope 

Marsen Energy’s liability under this Warranty shall be limited to replacement, repair or refund. Replaced or repaired products shall be warranted for the remainder of the original Term of Performance Warranty. In any event, the replacement shall not justify the renewal of the Term of Performance Warranty. 

Marsen Energy's warranty only covers Manufacturing defects

2-3. Exclusion of Warranty 

The following is NOT covered by this Limited Warranty: 

  • Damage due to improper transportation, storage, installation or wiring by Buyer 

  • Modification, alteration, disassembly, repair or replace by someone other than personnel certified by Marsen Energy 

  • Normal wear and tear which may mean not meeting the Ah claim
  • Damage due to external influences including unusual physical or electrical stress (Lightning, flood, fire, accidental breakage, etc.) 

  • Damage due to defective BMS, PCM or associated components.

  • Use of an incompatible BMS, PCM, or ESC. 

  • Use without a compatible BMS or PCM. 
  • Discharged/Flat battery

3. Out of Warranty Policy 

Products damage which is not caused by seller, Marsen Energy shall provide charged service, including all the expenses of such as material cost, labor cost, warehouse cost, transportation cost, analysis cost, management cost, corporate profits, disposal expense(If necessary) and so on. 

4. Claim Payment Policy 

Claims under this Warranty must be made by notifying Marsen Energy directly. 

For a Warranty Claim to be processed, it must include following items; 

(1) Proof of the original purchase 

(2) Description of the alleged defect(s)  

(3) The relevant Product’s serial number and the initial installation date 

5. Applicable Law 

The Warranty is subject to the law of Australian State. Products come with guarantees that cannot be excluded under the Australian Consumer Law. The Buyer is entitled to a replacement or refund for a major failure. The Buyer is also entitled to have the goods repaired or replaced if the Products fail to be of acceptable quality and the failure does not amount to a major failure. The benefits to the consumer given by the warranty are in addition to any other rights and remedies of the consumer under a law in relation to the goods or services to which the warranty relates. This warranty only applies to the Buyer who purchased the Products for their own use.