Top quality ODM e-bike 14s2p 52v 7ah ultra slim rear rack battery pack

2021-05-17 03:25


Nominal Voltage52V
Size(customized)can be customized
Max charge current1C
Charging methodcharge with constant current 1C to 4.2v,then charge with constant voltage 4.2v, till charge current less than 0.01C
Max discharge current100A or obey your demand
Discharge cut-off voltage3V, the over-discharge detection voltage of BMS
Operating environmentcharging, 0°C ~ 50°C ; 65±20%RH

discharging, -20°C~60°C ; 65±20%RH

Dimensioncan be customized
Storage environment-20°C~50°C


storage for a long time(>3 months) and the storage condition shall be:<35°C;65±20%RH;

Full Size Sample Lead time:as usual 3-7 working days


Standard Set
Capacity:7Ah or customize
Nominal Voltage:52V
Cycle life:more than 500 Times
dimension:75mm*40mm*294mm or customize

Why Choose Us

1.Long life, large capacity and good shock resistance

2.Low self-discharge and good discharge performance at low temperature

3.Strong charging acceptance and quick-charging capability

4.Strong over-discharge resistance and charge retention

5.Maintenance-free and no acid or water for maintenance in usage

6.Excellent large current discharge performance, and have obvious advantages in startup and climbing

7. High temperature performance

8. Environmental friendly

9. Lighter weight smaller size

10.Most safe no explosion no fire

Related Lithium Battery Packs

How to Maintain Lithium Battery

Lithium batteries are presently the most commonly used energy storage devices on electric bike,electric scooter,golf cart, laptops,and other electric devices. Learning how to maintain lithium batteries can not only prolong battery lifetime but also protect your device from potential damage.

1.Charge new batteries. It’s Not charged over 12 hours when first used. Most lithium ion battery activated before leaving the factory. Due to their low self-discharge,it’s it’s unnecessary to charge lithium ion batteries for such a long time when new. Lithium ion battery are ready for use when the charger indicates so, and they will reach their best capacity after 3 or 5 cycles.

2.Use appropriate chargers. Many people take great care with their electronic gadgets, but often neglect the consequences of bad chargers on their lithium ion batteries. When choosing a charger, the original charger is the best choice. If that’s unavailable, a high quality charger that has an overcharge protection function, or a brand name charger will do. A low quality battery charger can lead to shorter run times,premature battery failure,or even fire or explosion.

3.Avoid touching metal contacts. All batteries’ contacts need to be kept clean for best performance. When carrying batteries around,don not let the contacts touch metal objects such as keys; this could cause a short circuit, damaging the battery or potentially resulting in a fire or an explosion.

4.Avoid using often in high or low temperature environments. Lithium ion batteries have optimal working and storage temperatures. If they are continually used in extreme temperature environments, this will negatively affect battery use time and useful cycles.

5.Avoid long periods without using or recharging. If batteries will be left unused for 3 months or more, partially recharge them ( to around 30%-70% of capacity,depending on planned storage time), then store the device to prevent battery damage. You may need to take the device out of storage and charge again after a months.

Our Factory



Lithium Battery Pack Main Applications
Electric propelling applications
engine starting battery; Slow Speed Car; intellectual robots; electric bicycle/motorcycle/scooter; golf trolley/carts/ sightseeing car; power tools.
Energy storage
solar and wind power system; city on/off grid; community and family, RV Caravan, Marine yachts.
Back-up system and UPS
telecom base, CATV-system, computer server center, medical instrument, military equipment.
Other applications
security and electronics; mobile POS, mining light/torch/LED light/emergency light.

Packing And shipping

PackagingNormal OPP bag;PVC bag;Customized box
Carton Size60cm*40cm*35cm or customized,10 bags/ carton
Gross weight1.8KG

Q1:Before order, can I have samples for testing?
A: Yes, we can provide you samples for testing firstly.

Q2: Do you test all your goods before delivery?
A: Yes, we have 100% test before delivery.

Q3: How to proceed an order?
A: 1. Contact our service & let us know your requirements or application.
2. We quote according to your requirements or our suggestions.

Q4: What kind of environment should lithium batteries store?
A: -40°C~50°C, 65±20%RH storage for a long time(>3 months)
and the storage condition shall be:<35°C , 65±20%RH

Q5: What is MOQ?
A: Low MOQ, 1pc for sample checking is available.

Q6: What is your payment and delivery items & time?
A: 1. Payment items: By T/T, 30% for deposit, and balance all before shipment.
For small amount, we also accept payment via PayPal.
2. Delivery Items: we can ship the batteries by sea, by air, by UPS, DHL, TNT, FEDEX and some special line.
3. Delivery time: Generally, it will take 7 to 15 days after receiving your advance payment.
Sample : 7 days.

Big Order: 5-15days. The specific delivery time depends on the items and the quantity of your order.

Note: We are a battery manufacturer. All products do not support retail, we only do B2B business.please contact us for product prices!