ZSD-KTS04 Downtube Lithium Battery for Electric Bicycle | Lead-acid to Lithium Upgrade Battery Pack
Category
Lead-acid to Lithium Upgrade
Maximum Number of Cells: 18650 (65 pcs)/21700 (65 pcs) Maximum Capacity: 48V 25Ah/36V 30Ah Dimensions: 685 × 73 × 87 mm
WeChat：
Tel/WhatsApp：
Email：
ZSD-KTS04 Downtube Lithium Battery for Electric Bicycle | Lead-acid to Lithium Upgrade Battery Pack
Maximum Number of Cells: 18650 (65 pcs)/21700 (65 pcs)
Maximum Capacity: 48V 25Ah/36V 30Ah
Dimensions: 685 × 73 × 87 mm
Product Features & Highlights
This ZSD-KTS04 downtube lithium battery is specially designed for customers who want to upgrade old lead-acid e-bikes to lithium power. ✅ Perfect Lead-acid Replacement Direct upgrade solution for original lead-acid electric bikes. No complicated frame modification required, easy installation.
✅ Long Cycle Life & High Energy Density Adopts grade A 18650 / 21700 lithium cells. Much lighter than lead acid batteries, longer service life, lower self-discharge rate.
✅ Integrated Smart BMS Protection Built-in BMS to protect battery against over-charge, over-discharge, over-current, short circuit and over-temperature. Improve battery safety and service life.
✅ Compact Downtube Shape Design Slim vertical tube form, fits inside e-bike frame downtube, saves space, waterproof casing for daily riding.
✅ Customization Available We support custom voltage, capacity, connector and communication protocol according to your market demand.
✅ Light Weight & High Output Greatly reduce the total weight of your e-bike, deliver stable continuous power output for hill climbing and long-distance travel.
4. Application Industry
- Electric bicycle manufacturing & refurbishment
- Lead-acid battery replacement market
- E-bike retailers & distributors
- European / North America / Southeast Asia e-bike aftermarket
- E-bike rental & shared mobility projects
5. FAQ
Q1: Can this battery replace my original lead acid battery directly?
A: Yes, ZSD-KTS04 is developed for lead-acid to lithium upgrade. We will match the connector and voltage to your original e-bike system. Please provide your old battery parameters when inquiry.
Q2: What cell options do you have?
A: Support 18650 and 21700 cells. Grade A new cells as standard, we can offer different cell brands to meet your budget.
Q3: Is BMS built inside the battery pack?
A: Yes. Every pack is equipped with built-in BMS for full protection.
Q4: What is your MOQ?
A: Small MOQ for trial order. We accept sample order for quality testing before bulk purchase.
Q5: Can you print our logo on the battery shell?
A: Yes, OEM & ODM service available, custom logo and package.
RECOMMENDED PRODUCTS
It is a high-tech enterprise specializing in the research, development, production, and sales of portable power stations, keyboards, and all-in-one computers
PRODUCT INQUIRY
We highly value your feedback and consultation. If you have any questions about our products or services, please fill out the form below and we will contact you as soon as possible.
Phone
Add
Buildings 5-7, Liyuan Battery Science Park, No.166 Shipin Avenue, Shanggao County, Yichun City, Jiangxi Province, China