对于松下密封铅蓄电池而言，由于采用贫液式设计，电池容量对电解液量极为敏感。电池失水10%，容量将降低20%;损失25%水份，电池寿命结束。然而胶体密封铅蓄电池采用了富液式设计，电解液密度比AGM密封铅蓄电池低，降低了板栅合金腐蚀速度;电解液量也比后者多15%～20%，对失水的敏感性较低。这些措施均有利于延长电池使用寿命。

  根据Panasonic松下蓄电池提供的资料，胶体电解液所含的水量足以使电池运行12～14年。电池投入运行的第一年，水损耗4%—5%，随后逐年减少，4年之后总的水耗损只有2%。OP2V型密封电池在2.27V/单体条件下浮充运行10年后，其容量还有90%。从国内一些邮电通信部门的反映来看，松下电池售价较高，但其使用寿命却长于国产的AGM密封铅蓄电池。

For panasonic sealed lead batteries, the battery capacity is very sensitive to the amount of electrolyte due to its lean liquid design.Battery water loss 10%, capacity will be reduced by 20%;25% water loss, battery life is over.However, colloid sealed lead battery adopts rich liquid design, the electrolyte density is lower than AGM sealed lead battery, which reduces the corrosion rate of grid alloy.The amount of electrolyte is 15% ~ 20% more than the latter.These measures are beneficial to extend the battery life.

According to Panasonic batteries, the gel electrolyte contains enough water to keep the battery running for 12 to 14 years.In the first year of operation, the water loss of the battery was 4% to 5%, and then decreased year by year. After four years, the total water loss was only 2%.The OP2V sealed battery has a capacity of 90% after 10 years of floating charge at 2.27v/cell.According to the report of some posts and telecommunications departments in China, panasonic battery is more expensive, but its service life is longer than the domestic AGM sealed lead battery.