Custom lithium battery packs for device makers · Made in Shenzhen, shipped worldwide

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24V 20AH 7S8P Lithium ion Battery Pack
EV Replacement Battery Packs

24V 20AH 7S8P Lithium ion Battery Pack

7S8PLi-ionOEM / ODM

This 25.9V 20Ah Li-ion battery pack (7S8P) is built by Jetray Battery for e-bikes and e-scooters, electric motorcycles and mopeds, golf carts and low-speed vehicles. Cells, BMS settings, connector, wiring and housing can all be built to your specification.

  • Nominal voltage25.9V
  • Capacity20Ah
  • Energy518Wh
  • Max discharge20A
  • Fully customizableVoltage, capacity, BMS, housing
  • Documents readyDatasheet, MSDS, UN38.3
  • 24-hour replyDirect from our engineers
Specifications

Technical data

Standard model values. Every parameter below can be adjusted for your project.

Configuration7S8P
Nominal Voltage25.9V
Capacity20Ah
Battery Model24V 20Ah
ChemistryLi-ion
Shipment Voltage25.9–26.9V
Charge Cut-off Voltage29.4V
Discharge Cut-off Voltage17.5V
Internal Resistance≤370mΩ
Max Charge Current5A
Max Continuous Discharge Current20A
WeightAbout 3.8kg
BMS / ProtectionShort-circuit protection

Voltage window 17.5 – 29.4 V

17.5 V cut-off25.9 V nominal29.4 V full
Need different specs?

Send your voltage, capacity, current and size limits. We build packs to your drawing.

Runtime estimator

Size the pack to your load

Enter your load and the number of packs in parallel to estimate current, C-rate and runtime.

W

System: 25.9 V · 20 Ah · 518 Wh

–Current (A)
–C-rate
–Est. runtime
0.5C1C

Ideal estimate at nominal voltage and capacity; reference rate 1C (from the listed discharge current). Real results vary with temperature, cell age and cut-off settings. Packs in parallel must be matched — ask our engineers first.

Applications

Where it is used

E-bikes and e-scooters
Electric motorcycles and mopeds
Golf carts and low-speed vehicles
AGVs, robots and mobility devices
Customization & BMS

Built around your equipment

Voltage, capacity, size, BMS and communication can all be changed for OEM / ODM projects. Start from this model or from your own drawing.

FAQ & safety

Common questions

We offer Li-ion (NCM / NCA), LiFePO4 and LTO cells, chosen to match your project needs.

Yes. We provide structural design so the pack fits your housing, connector and mounting points.

Overcharge, over-discharge, overcurrent, short-circuit and temperature protection, SOC / SOH display and communication protocols such as CAN and RS485.

Yes. Charging rates from 0.5C to 2C are possible, depending on the cell specification.

Typically 12–36 months, depending on the project agreement.

Keep them at 50–60% state of charge in a dry, ventilated place between −10 °C and 35 °C.

Safe handling

Heat and damage

Never heat, disassemble or modify the battery, or dispose of it in a fire. Do not pierce, hit, step on or drop it.

If fluid leaks

Do not touch it with bare hands. Rinse eyes, mouth or skin with clean water, see a doctor if needed and contact Jetray after-sales.

Keep it dry

Do not get the battery wet.

Storage conditions

Do not use or store the battery in direct sunlight, high heat or humidity, a hot car, or near heat sources.

OEM & custom packs

Ready to power your next project?

Tell us your voltage, capacity, size and application. Our engineers reply within 24 hours with a design proposal and quotation.

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