To obtain the full 100km between charges it is necessary to buy the version that runs on lithium-polymer batteries.
2
一般在保修期内是免费的，过了保修期根据手表型号选择电池的型号和电池使用寿命收费。
Generally yin the warranty period is free of charge, after the warranty period according to the model of the watch model and the battery life of the model.
3
有些型号的电池在接入直流电源时就能充电。
Some kinds of batteries can be recharged by connecting them to a source of direct current.
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