1.Can I combine lithium ion battery packs in parallel or series connection?
A: NPP recommends that you purchase a single battery that meets your voltage and capacity requirement to avoid any potential problems.Further, the parallel lithium battery with poor consistency will not charge or overcharge during the charging process, thereby destroying the battery structure and affecting the life of the whole battery.
2.Could you help to design a battery solution? A: Yes, sure. We have professional technology team that can design solutions for you on your requirements. Such as for solar system, UPS, telecommunication, etc. 3.How to Ask for Support if products failure in warranty? A: 1. Email us about PI number, serial number, Product S/N number,show uS more details such as: pictures, your testing report or video, if it is the quality problem of product itself, we will resend anew one in next order.2. we will submit your case to our after sales department, and solve it in 24 hours.
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