Our range

Products

Four categories — upgrade packs, housings, BMS units, and premium cells. All CE certified, stocked in Budapest, ready for EU distribution.

Category 01

Battery
Upgrade Packs

Fully assembled, ready-to-install replacement and upgrade battery packs for the three most popular e-bike housing formats. Each pack includes a smart BMS, connector, and full CE + UN38.3 documentation.

All packs use Grade A Samsung INR21700-50E or LG INR18650-35E cells. No substitutions without prior notice.
Best seller · DP-7
ST-48V21 Reention DP-7
High-capacity down-tube pack for the Reention Polly DP-7 housing. Samsung 21700 cells, 10S4P configuration.
Voltage48 V
Capacity21 Ah · 1 008 Wh
Config10S4P
CellsSamsung INR21700-50E
BMS30A smart, UART
ConnectorXT60
DP-7
ST-36V15 Reention DP-7
Mid-range upgrade for DP-7. Ideal balance of capacity and weight for urban and trekking use.
Voltage36 V
Capacity15 Ah · 540 Wh
Config10S3P
CellsSamsung INR21700-50E
ConnectorXT60
DP-9
ST-36V13 Reention DP-9
Compatible with the Reention Polly DP-9 housing (18650 format). Compact and lightweight.
Voltage36 V
Capacity13 Ah · 468 Wh
Config10S3P
CellsLG INR18650-35E
ConnectorXT60
Hailong · Delivery fleet
ST-48V17 Hailong G80
Rear-rack pack for Hailong G80. Designed for cargo and delivery fleet applications with high cycle durability.
Voltage48 V
Capacity17.5 Ah · 840 Wh
Config13S3P
CellsSamsung INR21700-50E
MountRear rack · lockable
Hailong
ST-36V10 Hailong G60
Entry-level rear-rack pack for Hailong G60. Suitable for city bikes and light delivery use.
Voltage36 V
Capacity10 Ah · 360 Wh
Config10S2P
CellsLG INR18650-35E
MountRear rack · lockable
Category 02

Battery
Housings

OEM-compatible polycarbonate shells for the most widely used e-bike battery formats. Sold empty for self-assembly or pre-assembled with cells and BMS on request. All housings include lock, key and mounting hardware.

Down tube · 21700
Reention Polly DP-7
The most popular down-tube housing on the European market. Accepts 21700 cells. Integrated lock and key system.
Cell format21700
Max config10S4P (40 cells)
MountDown tube
AvailableEmpty / assembled
Down tube · 18650
Reention Polly DP-9
18650-format down-tube housing. Slightly more compact than DP-7, widely used in mid-range e-bike builds.
Cell format18650
Max config10S3P (30 cells)
MountDown tube
AvailableEmpty / assembled
Rear rack · 21700/18650
Hailong G80
Heavy-duty rear-rack housing for delivery and cargo e-bikes. Robust locking mechanism, accepts both 21700 and 18650.
Cell format21700 / 18650
MountRear rack
AvailableEmpty / assembled
Rear rack · 18650
Hailong G60
Compact rear-rack housing for city and urban builds. Lightweight and easy to remove for indoor charging.
Cell format18650
MountRear rack
AvailableEmpty / assembled
Category 03

BMS
Units

Battery Management Systems for 24V, 36V and 48V configurations. All units include overcharge, over-discharge, over-current, short-circuit and temperature protection as standard. Bluetooth and UART variants available for app-based monitoring.

24V · 7S
BMS-7S-20A
Entry-level BMS for 24V packs. Suitable for city bikes and light cargo builds.
Voltage24 V (7S)
Continuous20 A
InterfaceStandard
36V · 10S
BMS-10S-30A
Most popular unit. Fits all 36V / 10S packs including DP-7, DP-9 and Hailong G60/G80.
Voltage36 V (10S)
Continuous30 A
InterfaceUART
48V · 13S · Bluetooth
BMS-13S-30A-BT
Smart BMS with Bluetooth for 48V packs. Real-time SOC, cell balancing data and fault alerts via mobile app.
Voltage48 V (13S)
Continuous30 A
InterfaceBluetooth 5.0
BalancingActive
Category 04

Samsung & LG
Cells

We supply Grade A lithium cells directly from Samsung SDI and LG Energy Solution. Available in bulk quantities for B2B clients and pack assemblers. All cells come with original manufacturer documentation and traceability.

Minimum order quantities apply. Contact us for pricing tiers and availability.
Samsung SDI · 21700
INR21700-50E
The preferred cell for modern high-capacity e-bike packs. High energy density, excellent cycle life, low internal resistance.
Format21700 (21×70 mm)
Capacity5 000 mAh
Nom. voltage3.6 V
Max discharge9.8 A (2C)
Cycle life500+ @ 80% capacity
GradeA · OEM
LG Energy Solution · 18650
INR18650-35E
Reliable workhorse for 18650-format packs. Wide operating temperature range, consistent performance across discharge curves.
Format18650 (18×65 mm)
Capacity3 500 mAh
Nom. voltage3.6 V
Max discharge8 A (2C)
Cycle life500+ @ 80% capacity
GradeA · OEM
Need a custom configuration?

We'll put together
a tailored proposal

Custom cell configurations, connector types, and BMS specifications available on request. MOQ from 20 pcs.

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