52V 30Ah Lithium Polly Ebike Bicycle Battery With Samsung 21700 5Ah Cells
Product Description:
1) With USB port can charge cell phone and bluetooth speaker
2) New shark style case battery with on/off button, help you save more power
3) Convenient charge port support 4A faster charge
4) Lighted battery LED power Indicator, inform you battery power in anytime
5) Lock with keys securely locks the mount on bike frame

Item | Specification | Remark |
Model No. | 52V 30Ah | Downtube |
Nominal Voltage | 52V | - |
Nominal Capacity | 30Ah (Samsung cells 21700 ) | Capacity customizable |
Dimensions | To be filled | Suggested format: L×W×H (mm) |
Weight | 7.5kg | - |
Cycle Life | ≥1000 times | 80% DOD (Depth of Discharge) |
Charge Voltage | 58.8V | - |
Discharge Cut-off Voltage | 35V | - |
Max Charge Current | 5A | - |
Max Continuous Discharge Current | 50A | - |
Operating Temperature | Charge: 0℃ ~ 45℃ Discharge: -20℃ ~ 60℃ | - |
Storage Temperature | -10℃ ~ 40℃ | - |
Charging Port | XT90 ,XT60 , Anderson | In the package |
BMS Function | Over-charge protection, over-discharge protection, over-current protection, over-temperature protection, balancing, etc. | - |
IP Class | IP65 | Dustproof and waterproof |
Case Material | ABS | Flame-retardant material |
- 6-in-1 Intelligent BMS:
✅ Over-charge protection (prevents swelling)
✅ Over-discharge protection (extends lifespan)
✅ Over-current protection (avoids short-circuit fires)
✅ Over-temperature protection (auto-shuts down in extreme heat)
✅ Short-circuit protection (safe cutoff in emergencies)
✅ Cell balancing (optimizes overall performance)

- Built-in 21700 Grade A+ cells from Samsung ,LG or Made in China.
- 1000+ Cycles @ 80% DOD: Retains 80% capacity after 1000 cycles

4 Levels LED Capacity Indicator
Charging port
Safe Lock+ Key
USB Port for protable device charging.

Say Goodbye to Range Anxiety


Why Choose Hailong 52V 30Ah?
✅ Versatility: From commuter bikes to industrial equipment.
✅ Cost-Efficiency: Lower lifetime cost than lead-acid + faster ROI for commercial users.
✅ Future-Proofing: Supports firmware updates for BMS optimization.
Welcome to contact us anytime : 86 139 2659 5297 or leadyo@leadyo-battery.com