Ningbo Ascender Powersupply Co.,Ltd.  located in Ningbo city,China, is a special batteries company which can supply lot kinds of batteries like VRLA Batteries,Maintenance-free batteeries,low-maintenance batteries,accumulator batteries,alkaline batteries,MH-Ni Batteries,Lithium batteries,and so on.As Products strictly implement SAE, JAS, DIN standards, which technical performances reach internationally advanced levels. You can have a look at our web: . Also youre always welcomed if you  have a good idea about the battery design.