A Grade cells from Samsung, Panasonic, LG Chem, etc.
20Ah (customized, can be 5~40Ah)
Std. Charge Current
Max. Continuous Discharge Current
Discharge Cut-off Voltage
Available for case, shape, capacity, logo, discharge, connector, etc.
EVVA prides itself on using only the highest quality cells to make lithium battery packs with advanced equipments and experiencing skills. We have established strategic relationship with international lithium battery suppliers such as GP, Murata, Panasonic, LG Chem, Samsung SDI,Moli, etc.
With over 14-year experience in the field of Lithiuim-ion battery packs, EVVA strives to provide a quality oriented, technically innovative and responsive service for our customers. All packs are PRC manufactured within a quality standards framework, which make EVVA products highly appraised by customers all over the world.
WHY CHOOSE US
Professional pre and after sale service
Available and well matched what you require
All materials are A Grade qualtity guaranteed
Own factory with advanced battery equipments
Packaging & Shipping
Standard export carton packing.
3-20 days after confirming order,detail delivery date should be decided according to production season and order quantity.
Is your battery quality approved?
Yes, we guarantee that the quality of cell we use is approved by EVVA. And we will have full inspection of each cells and grouping them before assembling into battery packs. Besides, the PCM we use is self-designed and is choosed according to different application&specification. And all finished battery packs will be under a full inspection before shipment.
What is your lead time if I placed an order?
For all products in stock, our lead time is within 2 working days after payment received. For OEM battery packs, our lead time is around 10-15 days.
Do you have a factory for battery pack assembly?
Yes, we are a professional factory for high-end battery pack assembly. With a series of advanced equipments and experienced staffs we are sure we can provide a profeesional battery pack for your end. We are factory and our lead time is guaranteed and well controlled.
What payment method do you accept?
We accept T/T bank transfer, Alibaba trade assurance and paypal.
What is your warranty?
We guarantee the quality before the item is shipped. You can 3-month free replacement, and lifetime maintenance service from the date of delivery. Any damages caused by improper use are not covered by our warranty.
What kind of testing do you use before shipment?
Battery pack voltage, internal resistance, aging (discharge and charge), dimension, etc.
What shipment method do you use?
Air (for small parcels, we ship via UPS express or other door to door air method) or ocean (for large shipment, we would ship via sea).
What certifications do you have?
We have passed the ISO 9001: 2015 certification including design, production and sales of Lithium ion batteries. Also we have CE, UN38.3, CB and other testing certifications for our battery packs. If for OEM battery packs, we can also send to authority for testing if you required.