Likewise, check if the brake power is off to make certain the controller runs normally. Human factors that cause battery damage aren't within the scope of substitute. The best battery and supplement utilized when it takes one along with a half to two years. The controller is made single Wheel Barrow Suppliers of small originals.Keep dry to forestall water ingress. This requires professional electric vehicle after-sales or repair center operations, do not arbitrarily operate. If the mineral water is short-circuited, it will burn up out! Also check that the connectors will be in contact with them so as to not ever cause a danger of fire and fire! (The motor power line is installed if the controller is installed, and the chief power line is preferably soldered). Charging: Don't charge for quite a long time during normal charging, control within just 10 hours in winter, plus control the temperature in 6-8 a long time in summer. The three-charter period belonging to the battery replacement policy: Each battery manufacturer's three bags of provisions are not similar, the battery shell cracking, loss, capacity less than 60% can be replaced within a certain period, but if you use other chargers, etc.