Outside the mainstream of sweeping robot battery on the market at present basically has nickel-chromium battery, nickel metal hydride batteries, lithium batteries.

Is environmental protection batteries, lithium-ion batteries can be through the relevant security certification, Rosh and eu requirements and lithium battery has quick charge, large capacity, no memory function, etc. So, in recent years, the domestic some sweeping robot factory started to use lithium battery. Lithium battery after nearly 20 years of development, security problems caused by the abuse has been effective control, so relative to the safety of the nimh batteries short board basic does not exist.

Nickel chrome battery not environmental protection, the eu countries on imported products are mandatory ROHS certification, so assembly nickel-chromium batteries because of the robot is not exported to eu countries, but many market sales in China.

Nickel metal hydride battery is environmental protection, cost a lot higher than nickel-chromium batteries, this robot can be exported to eu countries selling sweeps the floor. For ni-mh battery has a memory function, so the first three time charge time have more specific requirements, and actual applications, the nimh battery capacity attenuation is very serious, now see more user complaints of the robot battery cycle short, replacement cost is high. Currently sweeping robot manufacturers use nimh batteries for two reasons, one is for security reasons, thought to have a better performance of lithium battery safety hidden trouble, the second is for cost reasons, lithium battery is higher than nimh batteries.

Sweeping robot battery

So for using nimh or nickel-chromium battery sweeping robot can be replaced lithium battery?

If you sweep the floor before the robot's battery is not lithium battery, but nimh or nickel cadmium battery, we do not recommend that users to change into lithium battery, if you want to change, need to ask professional personnel, the main reason has the following two points:

1：Voltage may not match, the different types of batteries, working voltage range is different, must work to achieve voltage range are basically identical to work properly. Such as your sweeping the floor before the robot USES a nominal voltage of 12 V, capacity of 2 ah nimh batteries, its working voltage range should be between 9 and 14 V, so used to replace the battery of lithium battery working voltage range and capacity should be almost the same, such as three knot series can be used, capacity of more than 2 ah or lithium battery, its working voltage range roughly 9-12.6 V.

2：Charging mode, nimh or nickel cadmium battery is constant current charging methods, and lithium batteries in addition to the constant current constant pressure control is needed, otherwise may lead to dissatisfaction or filling battery charging security problem (this is a big problem). So if you want to use lithium battery replacement before nimh or nickel cadmium battery, the charging circuit needs to be changed, or the outer charging (highly recommended).

3：Motor starting current is larger, usually in practical use when changing according to sweep the floor carefully matching robot product manuals, otherwise may damage the lithium battery or lithium battery protection board or cause dangerous.

4：Need to consider the battery dimension problem, replace the lithium battery, whether can fit the original battery positions for battery positions to turn a big can use similar to the 26650 samples of the large capacity lithium battery, can obtain more long working time.

 Above all, a non-professional strongly do not recommend to use lithium battery to replace the sweeping robot nimh or nickel cadmium battery, the lithium batteries are not familiar with, is not recommended to replace, so as to avoid charging of the robot the security risk.

 The intelligent robot can share for busy urbanite sweeps the floor clean household chores, and thus get the favour of people. But at present our country has not enacted sweeping robot compulsory product certification and standard, the product has the problem of the good and bad are intermingled. Especially the consumer does not know the character of each type of battery, usually of the same capacity lithium battery performance is better than nimh chrome or nickel battery.