1、电动车蓄电池长久使用会导致电池失水。电动车在使用了8-10个月以后或充电时电源箱发烫时最好到专业保养点进行深度维护。

2、当蓄电池老化，容量下降时，续行里程会变短，但以下不属于蓄电池的问题时也会导致续行里程变短：
A、当电机效率下降时，所做的无用功增大，浪费电量，使续行里程变短；
B、劣质充电器每天对蓄电池充电时欠充电，使蓄电池容量不足而造成续行里程逐日下降变短；
C、控制器不良使电动车启动电量过大，启动时间过长而浪费电量，致使电动车续行里程变短；
D、劣质电动车各运动部位摩擦系数过大，或者机械传动助力过大，也能造成浪费电量，导致续行里程变短。
3、电动车的续行里程在短时间内突然下降十几公里，很有可能是电池组中最少有一块电池出现断格、极板软化、极板活性物质脱落等现象。此时，应及时到专业电池修复机构进行检查、修复或配组。电动车电池其中一个或几个电池出现故障后，要整组更换，不得单独调换其中那只存在故障的电池，否则对新电池会造成极大的伤害。

1, long-term use of electric vehicle batteries will lead to battery water loss. Electric car in the use of 8-10 months or when charging the power box when the best hot to the professional maintenance point for the depth of maintenance.

2, when the battery aging, capacity decline, the continued mileage will become shorter, but the following does not belong to the battery when the problem will lead to continued mileage shorter:

A, when the motor efficiency is reduced, the useless work increased, wasting electricity, so that the continued mileage shorter;

B, poor quality charger charging the battery every day when the charge, so that the battery capacity is insufficient to cause the daily mileage of the daily decline shorter;

C, the controller does not make the electric car start power is too large, start time is too long and waste of electricity, resulting in electric car continued mileage shorter;

D, low-quality electric car parts of the friction coefficient is too large, or mechanical transmission power is too large, can also cause waste of electricity, resulting in shorter mileage.

3, electric car continued mileage in a short time suddenly dropped more than ten kilometers, it is likely that the battery pack at least one battery dislocation, plate softening, plate active material off and so on. At this point, should be promptly to the professional battery repair institutions to check, repair or with groups. Electric car battery One or several of the battery failure, the entire group to replace, not a separate exchange of which there is only the fault of the battery, otherwise the new battery will cause great harm.