maintenance free battery

常见例句

Products are divided into four series: maintenance-free motorcycle batteries;
产品分为四大系列：免维护摩托车蓄电池；
Battery, maintenance-free , Charger for maintenance-free batteries, Disc brush, standard, Longlife fan, Tank-in-tank system.
标准盘刷2个，箱中箱式水箱设计，免维护电瓶和充电器。长寿命抽吸风扇。
High-efficiency silicon solar battery panels and physical capacity perfect combination of maintenance-free batteries, flash-powered energy, consecutive rainy days to normal flashlight.
高效率硅太阳能物理电池板和大容量免维护电池完美结合，为闪光器提供动力能源，能连续阴雨天正常闪光。