A 60V 21Ah lithium battery provides a compact replacement configuration for compatible Wenbox U2 Pro electric bikes.

The 21Ah capacity offers a practical energy storage level for applications where battery size and capacity both need to be considered.

When replacing an electric bike battery, matching the nominal voltage is essential. A 60V replacement battery should only be used with a compatible 60V electrical system.

Customers should also check the original Wenbox U2 Pro battery's dimensions, connector type, polarity, charging specifications, and mounting position.

Lithium battery technology is widely used for electric mobility applications because it provides rechargeable energy in a compact battery pack.

For users requiring longer cycle characteristics, a LiFePO4 configuration may be available depending on the battery design.

Custom battery services can also provide alternative capacities and dimensions for specialized applications.

PRODUCT PROFILE OEM/ODM
Model	The lithium iron phosphate battery (LiFePO4 battery)		Application	Boats; Golf Carts; Electric Bicycles/Scooters; electric vehicles; Electric Wheelchairs; dc motor auto rickshaw;U2/UB/QS350Electric Bicycles;
Nominal Voltage (V)	48V/52V/60V/72V...etc		Cycle Life	6000 cycles
Capacity	20ah/30ah/40ah/50ah/55ah/60ah/70ah100ah....etc;		Cathode Materials	LiFePO4
Dimension	Customized size ;Regular size;		Operating Temperature(℃)	-20~65℃
Battery cells types	Lithium iron phosphate battery cells		Place of Origin	Guangdong, China
Color	Black ;orange;		Warranty	1 Years
Charging port	Optional		Certification	CE UN38.3 Rohs,MSDS
Discharging port	XT40;XT60;XT90;QS8S;QS9S;QS10S;Optional		Chargeable	Yes
Customized	OEM/ODM Acceptable.		Packages	Standard carton package

Manufacturer	Foshan Airuisi Intelligent Technology Co., Ltd.
Voltage	48V/60V/72V
Capacity	20Ah	40Ah	60Ah	80Ah	100Ah	120Ah
Discharge current	Multiple options are available;
Size	Customized to your requirements
Cycle Life	≥80% capacity after 3000 times
Warranty	12 Months
Your Primary Custom Battery Pack Manufacturer in China
Contact ARS to Start Your Custom Battery Project	1.Custom Li-ion Battery 3D Drawing
	2.Battery Management System Design
	3.Customized Waterproof Battery
	4.Customized high and low temperature battery
	5.Customized fast charge Battery
	6.Customized high rate discharge Battery
	7.Customized battery pack voltage capacity discharge rate
	8.Custom battery pack cables, terminals
	9.Customize Explosion-proof Battery (EX ia/ib IIA/IIB T1-T4)
	10.Maximum Reliability + Maximum Safety

As a certified national high-tech enterprise, Foshan Airuisi Intelligent Technology Co., Ltd. focuses on integrated lithium battery research, development, manufacturing and sales,alongside full-process electric bicycle production services. Committed to manufacturing premium, high-performance lithium battery products, the company also specializes in electric bicycle assembly and production, delivering end-to-end one-stop industrial solutions ranging from power lithium batteries to finished electric vehicles for global business partners. Our lithium battery products are widely compatible with diverse electric mobility devices, covering standard electric bikes, electric motorcycles and electric kick scooters. Independently developed and produced by our factory, our electric bicycle series gains great popularity across global markets. Combining state-of-the-art core technologies and modern streamlined
industrial design, our electric bikes feature stable premium performance, eco-friendly attributes and low energy consumption, perfectly catering to green commute demands of modern urban dwellers. Supported by an experienced expert team with professional technical strength, Airuisi Intelligent owns deep industry accumulation and rich on-site manufacturing experience in lithium battery development and complete electric bicycle production. We continuously fund technological upgrades and product innovation iteration, to make our lithium batteries and electric bicycles meet diversified market demands and personalized customized requirements from clients. Adhering to long-term sustainable development values, the enterprise prioritizes ecological preservation and efficient cyclic resource utilization. We implement strict green production standards in lithium battery production, and follow unified energy-saving and emission-reduction norms throughout electric bicycle design and manufacturing procedures. All finished goods pass authoritative global certifications including CE, UN38.3 and MSDS, ensuring safe and stable application worldwide. Furthermore, we offer customized OEM electric bicycle manufacturing services, conducting exclusive whole-vehicle design and production according to
clients’ personalized demands. We provide customized professional solutions covering vehicle dimension adjustment, customized battery capacity and exclusive performance parameter setting, helping clients build differentiated product advantages and core market competitiveness. Our long-term goal is to become a leading benchmark manufacturer in the global electric bicycle industry and promote sustainable standardized development of the whole sector.

Thank you for your interest in our products. If you have any questions, suggestions, or need further services, please feel free to contact us through the following methods:

TEL: +86 (0)75786719716 86-18138500490

E-Mail: sales01@ai-ruisi.cn sales03@ai-ruisi.cn

Whatsapp/Wechat/Mob: 0086- 18138535456 Wechat:13550799023