18650 NCM downtube lithium-ion e-bike battery with 40A BMS, 3A charging, ≤30A continuous discharge and customizable configurations.
PRODUCT DETAILS
Complete product details — specifications, images, FAQ, and downloadable resources for this VoltCrave power solution
The ZD48V20AH combines a 48V platform with 20Ah capacity for electric bicycle and conversion-kit applications.
The battery uses 18650 lithium-ion cells with NCM chemistry in a compact downtube battery format.
A 40A BMS supports battery management and protection during everyday charging and discharging.
The battery is designed for electric bike motor configurations ranging from lower-power systems up to 1500W.
A 54.6V charging voltage and 3A charger provide a straightforward charging configuration for the 48V battery system.
The slim downtube enclosure integrates a locking structure for practical installation and removal from compatible electric bicycle frames.
Continuous discharge current is rated up to 30A, with a specified discharge cut-off voltage of 36.4V.
VoltCrave Power supports customized battery configurations for different electric bicycle and B2B project requirements.
| Parameter | Specification |
|---|---|
| Product Type | Downtube E-Bike Battery |
| Battery Type | Lithium-Ion Battery |
| Battery Chemistry | NCM |
| Battery Cell | 18650 |
| Nominal Voltage | 48V |
| Nominal Capacity | 20Ah |
| BMS | 40A |
| Charger | 3A |
| Charge Voltage | 54.6V |
| Continuous Charge Current | ≤3A |
| Continuous Discharge Current | ≤30A |
| Discharge Cut-Off Voltage | 36.4V |
| Compatible Motor | Up to 1500W |
| Battery Style | Downtube |
| Application | Electric Bike / E-Bike Conversion |
| Customization | Available According to Customer Requirements |
Representative safety, transport and market-compliance documents supporting qualified VoltCrave Power battery solutions for international B2B projects. Certification availability varies by product model and target market — contact VoltCrave Power to confirm the applicable compliance documents for your selected product.
Safety
Market Compliance
Transport
Environmental
Safety Documentation
Cell Safety
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MANUFACTURING
End-to-end custom lithium battery manufacturing — from cell selection and BMS programming to enclosure design, branding, and global certification
Custom LiFePO4 battery enclosure dimensions, colors, terminal layouts, and connector types. Tailor voltage (12V / 24V / 48V) and capacity to your target market requirements.
Full OEM battery branding: laser-engraved logos, custom label nameplates, silk-screened enclosures, and exclusive retail packaging. Your brand, our lithium battery technology.
We assist distributors with CE, UL 1973, IEC 62619, UN38.3, and RoHS compliance for lithium battery imports. Complete technical documentation, MSDS, and test reports included for customs clearance.
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