ZSD-IR Rear Rack Ebike Battery Pack,48V 20Ah 18650 Lithium Battery for Electric Bicycle

Maximum Number of Batteries: 18650 (70 pcs)/21700 (60 pcs)

Maximum Capacity: 48V 20Ah/36V 30Ah

Dimensions: 441 × 80 × 108 mm
 

Product Description

ZSD-DJG rear rack lithium battery is specially designed for electric bicycles, mounted on the rear bike rack. It is an ideal upgrade & replacement for traditional lead-acid batteries.

✅ Key Highlights

1. Rear rack integrated design: Easy to install and remove. Equipped with anti-theft key lock. You can take the battery home for charging after parking.
2. Multiple specifications available: 36V / 48V  optional with large capacity for long riding range, perfect for daily commute, mountain riding and long-distance travel.
3. Smart built-in BMS: Monitors each cell in real time. Protects battery against overcharge, over-discharge, short circuit and high temperature to extend cycle life & ensure safety.
4. Mature 18650 cell system: Stable cell consistency, high energy density, much lighter than lead-acid battery to reduce bike load.
5. Flame-retardant ABS housing: Shock resistant, splash-proof for daily use (NOT submersible). Built-in LED battery indicator to check remaining power at a glance.
6. Rear red warning lamp: Improves safety during night riding.

Image suggestion: Image1: Main product image (your original picture: battery + ebike render) Image2: Close-up details: power indicator, key lock and rear red light Image3: Real photo of battery installed on bicycle rear rack Image4: Internal factory photo showing BMS protection board

(4) Application Industries

1. Electric bicycle & E-bike retrofit industry: Convert regular bicycles into electric assist bikes, replace old batteries
2. Urban short-distance commuter e-bikes
3. Mountain electric bikes, vintage style e-bicycles
4. Cross-border ebike kit suppliers & bicycle modification retailers
5. Outdoor leisure cycling, small cargo assist bikes

(5) FAQ

Q1: Can this battery fit my electric bike? A: This is rear rack mount battery. Please make sure your bike has space for rear carrier. The size is 43016080mm. Also confirm your ebike controller matches the battery voltage (36V/48V).

Q2: How long for full charge and what is cycle life? A: Full charging takes around 4~6 hours. For standard 18650 cell version, cycle life ≥800 times.

Q3: Is BMS built inside the battery? A: Yes, built-in BMS protection board. It protects battery from overcharge, over-discharge, short circuit and overheating.

Q4: Can it replace lead acid battery? A: Absolutely. It is the perfect replacement for rear rack lead-acid batteries, lighter weight and longer service life.

Q5: What certifications do you provide? A: CE, UN38.3, MSDS documents available for shipment.

Q6: What is your MOQ? A: Sample order 1 set is acceptable. Discount available for bulk orders.