Cham 52v 48v 72v 50ah 60ah Battery Hailong Polly Dp7
Cham 52v 48v 72v 50ah 60ah Battery Hailong Polly Dp7
ChamRider High-Power Polly DP7 Downtube Lithium-Ion Battery Series –
36V / 48V / 52V / 60V / 72V Configurations (20Ah to 60Ah Options) with High-Density 21700 Cells, Built-in 50A–100A Smart BMS & FREE 5A Fast Charger (Fits 250W–3000W Motors)
Take your e-bike performance, range, and discharge capacity to the absolute limit with the ChamRider High-Power Polly DP7 Downtube Series. Engineered around next-generation 21700 high-capacity cylindrical lithium cells, this battery platform delivers higher energy density, lower thermal buildup, and significantly reduced voltage sag under heavy load compared to standard 18650 packs.
Built into the heavy-duty Reention Polly DP7 frame case, this pack supports motor setups rated from 250W all the way up to 3000W high-torque mid-drives and hub motors. Equipped with an ultra-heavy-duty 50A to 100A high-discharge Smart BMS protection board, an integrated battery power gauge, an anti-theft frame key lock, and a FREE 5A Fast Charger, the Polly DP7 is the ultimate high-discharge solution for extreme commuters and off-road builders.
⚠️ Voltage, BMS Current & Motor Power Selection Guide
CRITICAL VOLTAGE & CONTROLLER MATCHING:
36V / 48V / 52V Packs: Standard downtube configuration utilizing the Polly DP7 casing (up to 70-cell 21700 layout). Perfect for Bafang BBS02 (750W), BBSHD (1000W), and CYC mid-drives.
60V / 72V Packs: High-power options engineered with heavy-duty internal nickel interconnects and 50A–100A continuous BMS output for 2000W to 3000W high-speed hub motors and Stealth-style builds.
Integrated Smart BMS: Built-in multi-point protection guards against over-charging, over-discharging, thermal overload, and short circuits.
🚀 Key High-Performance Features
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High-Density 21700 Cell Architecture: Features premium grade-A 21700 lithium-ion cells for extended range and superior high-current discharge stability.
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Heavy-Duty 50A–100A Protection BMS: Designed to feed high-amperage phase controllers without tripping over-current limits during full-throttle launches or steep trail climbs.
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1000+ Deep Recharge Cycles: Retains over 80% original energy capacity after 1,000 complete charge/discharge cycles for years of reliable operation.
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Free 5A Fast Charger Included: Every battery order includes a complimentary 5A Smart Fast Charger with auto cut-off protection.
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Reinforced Polly DP7 Downtube Housing: Impact-resistant frame case featuring an integrated power switch, 4-LED capacity indicator, and quick-release docking plate with key lock.
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Triple Safety Certification: Rigorously tested and certified under CE, FCC, and RoHS global safety standards.
📊 Technical Specifications Matrix
| Specification Parameter | ChamRider Polly DP7 Battery Specifications |
| Brand Name | ChamRider |
| Model / Casing Style | Reention Polly DP7 (Downtube Mount) |
| Cell Type & Chemistry | Grade-A 21700 Cylindrical / Lithium-Ion (Li-Ion) |
| Available Voltage Options | 36V | 48V | 52V | 60V | 72V DC |
| Capacity Options | 20Ah, 25Ah, 30Ah, 35Ah, 40Ah, 45Ah, 50Ah, 60Ah |
| Continuous Discharge Rating | 50A – 100A Smart BMS Protection Board |
| Compatible Motor Ratings | 250W, 350W, 500W, 750W, 1000W, 1500W, 2000W, 3000W |
| Included Charger | Complimentary 5A High-Current Fast Charger |
| Expected Cycle Life | 1000+ Cycles (≥80% Retained Capacity) |
| Certifications | CE, FCC, RoHS Certified |
| Manufacturer Warranty | 1-Year Extended Warranty |
📋 Ideal Applications
The ChamRider Polly DP7 21700 Series is ideal for high-drain, custom, and heavy-duty applications:
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High-Power Bafang Mid-Drives (BBS02 750W, BBSHD 1000W, M620 Ultra)
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2000W–3000W High-Speed Rear Hub Motor Conversions
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Long-Range E-MTB, Cargo, and Commercial Delivery Fleets
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Off-Road Trail Bikes & Custom High-Voltage DIY Builds
📦 Package Contents
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1 x ChamRider Polly DP7 21700 Lithium-Ion Battery Pack (Selected Voltage/Capacity)
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1 x FREE 5A Smart Fast Battery Charger with AC Power Cord
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1 x Heavy-Duty Quick-Release Frame Mounting Baseplate
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2 x Anti-Theft Security Lock Keys
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1 x High-Current Discharge Connection Cable (XT60 / XT90 / Anderson)
Power your e-bike with 21700 high-discharge performance. Select your voltage, capacity, and connector options below, click Add to Cart, and order today!
1. Maintenance service: 800-cycle warranty. If there are any quality issues, please contact us for free repair or replacement (if the battery damage is caused by personal behavior, the seller will not bear any losses or provide any services)
Notice for shipping time:
1. Since the battery is a special product, the transportation channel is different from that of ordinary products, and the delivery time will be longer than that of ordinary products, but we will use faster express delivery to mail it to you; please rest assured.
2. From the perspective of Chinese orders, it takes 1-2 days for stocking and 7-15 days for shipping to various countries. We choose air transportation (which belongs to land transportation in Russia) to deliver the products to customers in the fastest way possible (ignoring the default time on AliExpress)
Charger Plugs and Discharge Connectors Optional:
1. Charger Plug: US, EU, UK, and AU plugs optional; will provide according to delivery country if not requested.
2. Discharge Connector: There are 9 kinds optional (Product standard with connector XT60)as below picture, will be soldered with default female connector&extra male connector if not requested.
3. If you have any requirements about this, please leave a message in your order.
E-bike 36V 21700 Samsung battery Specifications:
Rated voltage: 36V
Rated capacity: 25ah/30ah/35ah/40ah/50ah/60ah
Type composition: 10S5P
Battery: Built-in 21700 Samsung battery
Model: Electric scooter/electric bicycle/lithium ion battery
Battery size: 368mm x 150mm x 95mm
Battery weight: about 6kg.
Charging method: CC / CV.
Standard charging current: 5A.
Maximum continuous charging current: 10A.
BMS: Maximum 100A,
Maximum peak current: 100A
Charging voltage: 42V
Discharge cut-off voltage: 29.6V
Cycle life: 1000+ times
Charging temperature: -15-65℃
Discharge temperature: -15-65℃
Protection function: overcharge, overdischarge, overcurrent, short circuit, balance
Applicable motor: 250w 350w 500w 750w 1000w 1500w motor
(Note: the battery voltage must match the motor)
The packing list includes:
1 * 36V lithium-ion battery pack (with box)
1 * 30 cm cable assembly
1 * 42v 5A charger
E-bike 48V 21700 Samsung battery Specifications:
Rated voltage: 48V
Rated capacity: 25ah/30ah/35ah/40ah/50ah/60ah
Type composition: 13S5P
Battery: Built-in 21700 Samsung battery
Model: Electric scooter/electric bicycle/lithium ion battery
Battery size: 368mm x 150mm x 95mm
Battery weight: about 7kg.
Charging method: CC / CV.
Standard charging current: 5A.
Maximum continuous charging current: 10A.
BMS: Maximum 100A,
Maximum peak current: 100A
Charging voltage: 54.6V
Discharge cut-off voltage: 39.2V
Cycle life: 1000+ times
Charging temperature: -15-65℃
Discharge temperature: -15-65℃
Protection function: overcharge, overdischarge, overcurrent, short circuit, balance
Applicable motor: 250w 350w 500w 750w 1000w 1500w 2000w motor
(Note: the battery voltage must match the motor)
The packing list includes:
1 * 48V lithium-ion battery pack (with box)
1 * 30 cm cable assembly
1 * 54.6v 5A charger
E-bike 52V 21700 Samsung battery Specifications:
Rated voltage: 52V
Rated capacity: 25ah/30ah/35ah/40ah/50ah/60ah
Type composition: 14S5P
Battery: Built-in 21700 Samsung battery
Model: Electric scooter/electric bicycle/lithium ion battery
Battery size: 368mm x 150mm x 95mm
Battery weight: about 7kg.
Charging method: CC / CV.
Standard charging current: 5A.
Maximum continuous charging current: 10A.
BMS: Maximum 100A,
Maximum peak current: 100A
Charging voltage: 58.8V
Discharge cut-off voltage: 42V
Cycle life: 1000+ times
Charging temperature: -15-65℃
Discharge temperature: -15-65℃
Protection function: overcharge, overdischarge, overcurrent, short circuit, balance
Applicable motor: 250w 350w 500w 750w 1000w 1500w 2000w motor
(Note: the battery voltage must match the motor)
The packing list includes:
1 * 52V lithium-ion battery pack (with box)
1 * 30 cm cable assembly
1 * 58.8v 5A charger
E-bike 60V 21700 Samsung battery Specifications:
Rated voltage: 60V
Rated capacity: 20ah/25ah/30ah/35ah/40ah/50ah/60ah
Type composition: 16S4P
Battery: Built-in 21700 Samsung battery
Model: Electric scooter/electric bicycle/lithium ion battery
Battery size: 368mm x 150mm x 95mm
Battery weight: about 7kg.
Charging method: CC / CV.
Standard charging current: 5A.
Maximum continuous charging current: 10A.
BMS: Maximum 100A,
Maximum peak current: 100A
Charging voltage: 67.2V
Discharge cut-off voltage: 51.2V
Cycle life: 1000+ times
Charging temperature: -15-65℃
Discharge temperature: -15-65℃
Protection function: overcharge, overdischarge, overcurrent, short circuit, balance
Applicable motor: 250w 350w 500w 750w 1000w 1500w 2000w motor
(Note: the battery voltage must match the motor)
The packing list includes:
1 * 60V lithium-ion battery pack (with box)
1 * 30 cm cable assembly
1 * 67.2v 5A charger
E-bike 72V 21700 Samsung battery Specifications:
Battery Voltage: 72V
Rated capacity: 25ah/30ah/35ah/40ah/50ah/60ah
Category: Li-ion Battery
Battery core: built-in 21700 Samsung battery
Array mode: 20s3p
Battery size: 368*150*95mm (the measurement may have an error of 1-2mm)
Battery weight: about 7KG
Voltage : Peak - 84V, working - 72V
Maximum constant discharge current: 90A
Peak current: 100A
Charging voltage: 84V
Charging Current: <10 Amps
Discharge cut-off voltage: 60V
Power: 300W-3000W
Application: E-bike Battery, electric scooter, electric wheelchair
Charging method: CC/CV
Cycle life: 1000+times
Charging temperature: -15-65℃
Discharge temperature: -15-65℃
Protection function: overcharge, overdischarge, overcurrent, short circuit, balance
Applicable motor: 72V 250W-3000W motor
(Note: the battery voltage must match the motor)
The packing list includes:
1 * 72V lithium-ion battery pack (with box)
1 * 30 cm cable assembly
1 * 84v charger
Original 21700 battery 36V 48V 52V 60V 72V electric bicycle battery suitable for 250W 350W 500W 750W 1000W 1500W 2000W 3000W motor kit!
(Please note: The voltage of the ordered battery must be the same as the voltage of the motor accessories; otherwise, it may cause incompatibility between the motor and battery)
36V-72V Precautions for battery use:
1. Before first use, please fully charge the battery.
2. Do not immerse the battery in water or get the battery wet!
3. Do not reverse the positive and negative poles, or short-circuit the battery with wires or other metallic objects!
4. Do not nail, knock, step on the battery or disassemble the battery and battery pack in any way!
5. It is forbidden to put the battery in the microwave oven, pressure vessel or fire source!
6. If the battery emits odor, heat, deformation, discoloration or any abnormal phenomena, please stop using it immediately!
7. Do not use the battery in direct sunlight or high temperature environment. Otherwise, the battery pack will overheat, affecting battery performance and shortening battery life!
8. The battery pack and charger should be stored in a clean, dry, ventilated place, avoid contact with corrosive substances, and away from fire and heat sources.
9. When the battery pack is to be stored for a long time, please charge the battery pack to about 50% capacity and store it in a dry and ventilated place, and charge it for 2 to 3 hours every 3 months.
10.If you have any questions about product quality, please contact us by email immediately, we will try our best to solve these problems!
Details
This product is crafted with quality materials to ensure durability and performance. Designed with your convenience in mind, it seamlessly fits into your everyday life.
Shipping & Returns
We strive to process and ship all orders in a timely manner, working diligently to ensure that your items are on their way to you as soon as possible.
We are committed to ensuring a positive shopping experience for all our customers. If for any reason you wish to return an item, we invite you to reach out to our team for assistance, and we will evaluate every return request with care and consideration.
