+8615360903247
+8615360903247
Reliable 24V lithium battery packs designed for entry-level and utility e-bikes. Our 24V systems deliver stable torque, smooth startup, and safe everyday performance for low- to mid-power controllers. Available in multiple capacities and cell options, each pack is built with Grade-A cells, matched BMS, and proper safety protection (over-charge, over-discharge, over-current, temperature). Perfect for assist bikes, delivery fleets, and budget-friendly commuter builds.
Our 24V packs (7S Li-ion, 29.4V full) are the dependable choice for 250–1000W systems. As an OEM/ODM manufacturer, we build 24V solutions across two cell families—21700 (EVE 50E / Samsung 50G) and 18650 (DMEGC 2600/3000 / Samsung 35E)—in capacities from 5.2Ah up to 28Ah, matched with integer BMS options of 20A / 30A / 40A (Bluetooth optional) to fit your controller and range goals.
Whether you want longer range or smooth low-speed torque, each pack uses Grade-A cells, tight cell matching, and full protection (over-charge, over-discharge, over-current, short-circuit, temperature). Send your drawing or specs—current target, dimensions, XT60 or XT90 preference—and we’ll configure the most suitable 24V solution for your application. (8S LiFePO4 versions available on request.)
A true 24V system gives smooth take-off, predictable torque, and stable voltage under load—perfect for 250–1000W city, delivery, and utility e-bikes.
Pick 21700 (EVE 50E / Samsung 50G) or 18650 (DMEGC 2600/3000 / Samsung 35E) in 5.2Ah–28Ah. You choose the balance of range, weight, and cost; we match cells by IR and capacity for consistent output.
Robust protection with 20A / 30A / 40A continuous BMS options. Full safeguards (OV/UV/OC/SC/temperature) keep packs safe and steady—Bluetooth module available if you want live diagnostics.
Built to match 60V controllers with XT60 or XT90 connectors and CC/CV 67.2V charger compatibility—clean installs, low voltage sag, and reliable daily use.
24V lithium power made simple—IR-matched cells, smart protection, and plug-and-ride integration for daily use.
7S Li-ion (29.4V full) · Case size: 385 × 90 × 87 mm · No connector row · No Bluetooth
| Specification | 24V 10Ah | 24V 13Ah | 24V 15.6Ah | 24V 18Ah | 24V 21Ah | 24V 24.5Ah | 24V 28Ah |
|---|---|---|---|---|---|---|---|
| Model / Case | JD-045SE | ||||||
| Series | 7S Li-ion (29.4V full) | ||||||
| Configuration | 7S4P | 7S5P | 7S6P | 7S7P | 7S6P | 7S7P | 7S8P |
| Cell Brand / Type | DMEGC 2600 (18650) | DMEGC 2600 (18650) | DMEGC 2600 (18650) | DMEGC 2600 (18650) | Samsung 35E 3500 (18650) | Samsung 35E 3500 (18650) | Samsung 35E 3500 (18650) |
| Recommended BMS (continuous) | 28A | 35A | 42A | 49A | 42A | 49A | 56A |
| Charger | 29.4V 3A standard charger | ||||||
| Dimensions (L×W×H) | 385 × 90 × 87 mm | ||||||
| Notes | Integer-BMS mapping shown per parallel count; can be fixed to your preferred spec. | ||||||
7S Li-ion (29.4V full) · Case size: 250 × 50.6 × 150 mm
| Specification | 24V 10.4Ah | 24V 12Ah | 24V 14Ah |
|---|---|---|---|
| Model / Case | JD-047RE · Rear rack housing | ||
| Series | 7S Li-ion (29.4V full) | ||
| Configuration | 7S4P | 7S4P | 7S4P |
| Cell Brand / Type | DMEGC 2600 (18650) | DMEGC 3000 (18650) | Samsung 35E 3500 (18650) |
| Recommended BMS (continuous) | 28A | ||
| Charger | 29.4V 3A standard charger | ||
| Dimensions (L×W×H) | 250 × 50.6 × 150 mm | ||
Combined specs for JD-029RE / JD-030RE / JD-031RE · Default charger: 29.4V 3A
| Model | Capacity | Cell Brand / Family | Config | Cell Pcs | Case (mm) | Rec. BMS |
|---|---|---|---|---|---|---|
| JD-029RE | 24V 5.2Ah | DMEGC 2600 · 18650 | 7S2P | 14 | 257 × 63 × 86 | 28A |
| JD-029RE | 24V 6Ah | DMEGC 3000 · 18650 | 7S2P | 14 | 257 × 63 × 86 | 28A |
| JD-029RE | 24V 7Ah | Samsung 35E 3500 · 18650 | 7S2P | 14 | 257 × 63 × 86 | 28A |
| JD-030RE | 24V 7.8Ah | DMEGC 2600 · 18650 | 7S3P | 21 | 326 × 63 × 86 | 42A |
| JD-030RE | 24V 9Ah | DMEGC 3000 · 18650 | 7S3P | 21 | 326 × 63 × 86 | 42A |
| JD-030RE | 24V 10.5Ah | Samsung 35E 3500 · 18650 | 7S3P | 21 | 326 × 63 × 86 | 42A |
| JD-031RE | 24V 10Ah | EVE 21700 · 21700 | 7S2P | 14 | 217 × 74 × 86 | 28A |
| JD-031RE | 24V 10Ah | Samsung 50G · 21700 | 7S2P | 14 | 217 × 74 × 86 | 28A |
| Notes: All entries are 24V (7S Li-ion, 29.4V full). Default charger: 29.4V 3A. Connectors/Bluetooth not shown by design. | ||||||
7S Li-ion (29.4V full) · Case size: 380 × 85 × 42 mm
| Specification | 24V 10.4Ah | 24V 12Ah | 24V 14Ah |
|---|---|---|---|
| Model / Case | JD-016RE | ||
| Series | 7S Li-ion (29.4V full) | ||
| Configuration | 7S4P | 7S4P | 7S4P |
| Cell Brand / Type | DMEGC 2600 (18650) | DMEGC 3000 (18650) | Samsung 35E 3500 (18650) |
| BMS (continuous) | 28A | ||
| Output Connector | 2-pin discharge port no XT60/XT90 | ||
| Charger | 29.4V 3A standard charger | ||
| Dimensions (L×W×H) | 380 × 85 × 42 mm | ||
7S Li-ion (29.4V full) · Case size: 247 × 147 × 150 mm
| Specification | Details |
|---|---|
| Model | JD-025SE |
| Voltage / Series | 24V (7S Li-ion, 29.4V full) |
| Capacity | 15Ah |
| Configuration | 7S5P |
| Cell Brand / Type | DMEGC 3000 (18650) |
| BMS (continuous) | 35A (integer BMS) |
| Charger | 29.4V 3A standard charger |
| Dimensions (L×W×H) | 247 × 147 × 150 mm |
| Notes | Connectors/Bluetooth not shown by design; other currents on request. |
7S Li-ion (29.4V full) · Case size: 247 × 150 × 147 mm
| Specification | 24V 13Ah | 24V 15Ah | 24V 17.5Ah |
|---|---|---|---|
| Model / Case | JD-1003 | ||
| Series | 7S Li-ion (29.4V full) | ||
| Configuration | 7S5P | 7S5P | 7S5P |
| Cell Brand / Type | DMEGC 2600 (18650) | DMEGC 3000 (18650) | Samsung 35E 3500 (18650) |
| BMS (continuous) | 35A | ||
| Charger | 29.4V 3A standard charger | ||
| Dimensions (L×W×H) | 247 × 150 × 147 mm | ||
7S Li-ion (29.4V full) · Case size: 247 × 150 × 147 mm
| Specification | 24V 13Ah | 24V 15Ah | 24V 17.5Ah |
|---|---|---|---|
| Model / Case | JD-1003 | ||
| Series | 7S Li-ion (29.4V full) | ||
| Configuration | 7S5P | 7S5P | 7S5P |
| Cell Brand / Type | DMEGC 2600 (18650) | DMEGC 3000 (18650) | Samsung 35E 3500 (18650) |
| BMS (continuous) | 35A | ||
| Charger | 29.4V 3A standard charger | ||
| Dimensions (L×W×H) | 247 × 150 × 147 mm | ||
We design lithium battery packs to your exact spec—voltage (24/36/48/52/60/72V), capacity, discharge current, dimensions, connectors, and BMS logic—across LiFePO4 and NMC, 18650/21700/prismatic cells. Share drawings or targets (e.g., 48V 20Ah, 60V 50A BMS) and we deliver a fit-for-purpose pack for e-bikes/e-motos, cargo, robotics/AGVs, marine, and storage.
Grade-A cells from trusted brands (Samsung 50G, EVE 50E, DMEGC 2600/3000, etc.), high-reliability integer BMS (30A/40A/50A/60A/80A/100A), nickel/copper busbars, and robust harnessing keep voltage sag low and output stable. Traceable lots and consistent quality mean longer cycle life and predictable performance.
Cell grading & IR-matching, laser/smart welding, insulation & dielectric checks, and 100% end-of-line verification (capacity/IR; cycle sampling). BMS functional tests and documented QC deliver precision, consistency, and safety—pack after pack.
From early design through shipment, we provide application engineering, thermal advice, connector/charger matching, and documentation. We support UN38.3 transport testing and market compliance (CE, IEC 62133-2), plus DG packaging, logistics, and responsive after-sales—so your packs arrive ready to integrate and perform.
Covers our 24V (7S) packs in 18650 & 21700 housings, 5.2–28Ah options, integer BMS, and the default 29.4V 3A charger.
“24V” refers to a 7-series lithium pack (7S). Nominal voltage is ~25.2V; fully charged is 29.4V; recommended cutoff is ~19.6–21.0V depending on BMS settings.
We offer 5.2–28Ah across multiple housings. Cell families include DMEGC 2600/3000 (18650) and Samsung 35E 3500 (18650). Select models also support 21700 cells (e.g., EVE 21700 or Samsung 50G) at 10Ah configurations.
We do not list a “3200” 18650 option in the 24V lineup.
Integer BMS options by build include 20A, 28A, 35A, 42A, 49A, and 56A (availability varies by case/parallel count). Choose based on your controller’s current limit.
| BMS (A) | Typical Continuous Power* | Suggested Controller/Motor |
|---|---|---|
| 20A | ~500 W | 250–500 W systems |
| 28A | ~700 W | up to ~750 W |
| 35A | ~880 W | 750–900 W |
| 42A | ~1,050 W | ~1 kW class |
| 49A | ~1,230 W | 1.2 kW class |
| 56A | ~1,410 W | up to ~1.4 kW |
*Power ≈ BMS A × 25.2V nominal. Real performance depends on controller limits, wiring, temperature, and duty cycle.
Default builds are non-Bluetooth. Bluetooth monitoring can be added only on select housings that have space for the module—ask us to confirm for your chosen model.
All 24V packs ship with a 29.4V 3A CC/CV charger. Rough charge time = Ah ÷ 3A × 1.15 (efficiency). Example: 15Ah ≈ 5.75–6 h.
Most 24V “water bottle / rear-rack” housings use a 2-pin discharge port or lead wires by default. We can fit XT60/XT90/Anderson on request if the enclosure allows; please share your controller plug type.
Yes—choose a BMS current equal to or greater than your controller’s continuous current. Use the table above as a quick guide for matching power classes.
Every pack includes a smart BMS with over-charge, over-discharge, over-current, short-circuit, and temperature protections. Each pack is tested for insulation and polarity before shipment.
For NMC-based 18650/21700 packs, expect roughly ≥500–800 cycles to ~80% capacity under standard use (25±5 °C, 0.5C–1C rates). Actual life depends on depth-of-discharge, temperature, and current.
Yes. We support UN38.3 testing documentation and DG packaging. We’ll recommend air or sea routes based on your destination, timeline, and quantity.
Energy (Wh) ≈ 25.2 × Ah. Range ≈ Wh ÷ consumption. A pedal-assist city e-bike often uses 7–12 Wh/km. For example, 24V 15Ah ≈ 378 Wh → about 31–54 km depending on terrain, rider mass, and assist level.
Store at 30–60% state-of-charge (≈3.7–3.8 V/cell), in a cool, dry place (10–25 °C). Avoid leaving the pack fully charged or deeply discharged for long periods. Charge above 0 °C and discharge between -10–45 °C for best life.
Looking for the right eBike battery solution? Just send us your requirements — we’ll help you find the perfect pack, voltage, and features.
At JUNDA, we make customization easy. Follow these 3 simple steps to start today:
Send your battery requirements — voltage, capacity, casing type (e.g. Hailong, Rear Rack), or upload drawings/photos.
We’ll evaluate your specs and recommend the best configuration. A detailed quote will be sent within 24 hours.
After approval and deposit, we start production. Shipping and tracking will be arranged for fast, secure delivery.
Tell us what you need—we’ll respond with a solution, price, and lead time.
