E-bike battery cases

12v20ah

Outer dimension:181*78*167.6MM

Inner unit dimension:73*28.4*151.6mm 

1).Impact resistance:
Room temperature: the shot put with a 500g 1500mm and 1000mm respectively, from the slot cover for the end of free fall, look no obvious cracks Molded Case;
Low temperature: The samples were placed in -30 °C refrigerator to keep chilled 3 hours, and then samples removed from the refrigerator within 1 minute, shot with 500g of 500mm and 300mm respectively from the bottom slot, site for free-fall, and Molded Case cover without any obvious cracks;                                                           

2)Heat resistance: the samples were placed in 70 ± 2 °C constant temperature box for 3 hours, the length, width and height changes of less than 1.3mm.