Southern has entered the rainy season, May 6 am to 7 am, Hunan Meteorological served 11 consecutive orange rainstorm warning signal, six red rainstorm warning signal. Central Weather Bureau has forecast next week, heavy rains in the South would, but for part of the city caused by heavy rains in Hunan severe waterlogging or unexpected. It is understood that 310 million people were affected, the lake's water level rose across the board, high-speed landslides sweet wine lake traffic disruption, Yang horse car on the road turned, shovels and other drainage equipment line out of stock, schools, houses, shops and other flooded, water maximum depth of 1 meter.

So, in the relentless wind and rain into, to cause travel difficulties. Today, more and more people using electric bicycles as a means of transport. To open more and more people Electric Vehicles, despite the legend soon to be issued the relevant regulations, but there is still a lot of people to buy. Erupted in the South to catch up with the advent of heavy rains, especially in urban waterlogging caused by heavy rains in Hunan, the electric car battery protection become critical. Then, the electric bicycle battery power source --- how to maintain, the experts put forward five suggestions:

1 should not be stored power loss means loss of battery power state did not charge the battery after use, prone to sulfate, lead sulfate crystals attached to the plates, plug the electric ion channels, resulting in insufficient charging, battery capacity decline. Power loss the longer the idle state, the more serious battery damage. Idle when the battery should be charged once a month, which can extend battery life.
(2) to regularly test the use of process, if continued line of electric bicycles a sudden drop in mileage in a short time more than ten kilometers, it is likely that at least one battery cell group appeared off grid, plate softening, plate active material loss and other short circuit. At this point, it is timely to examine the professional battery repair agencies, repair, or with a group.
3 Do not high-current discharge in the initial electric bicycles, manned, uphill, it is best to use pedal power to avoid momentary high-current discharge. Easily lead to large current discharge lead sulfate crystals, to the detriment of the physical properties of the battery plates.

4 control the battery charging time under normal circumstances are charged at night, the average charging time of 8 hours. If the shallow discharge (charge mileage is very short), the battery will soon be filled, there will continue to overcharge the phenomenon of charge, resulting in battery dehydration, fever, reduced battery life. Therefore, the battery to discharge depth of 60% -70% of the best on one charge, the actual use can be converted into riding mileage charge based on actual conditions necessary to avoid damaging charge.
 
5 electric bicycles is prohibited to prevent heat exposure in the sun exposure. Temperature conditions may cause the battery through increased battery internal pressure forced the pressure limiting valve automatically opens, increase the battery is a direct consequence of loss of water, and excessive water loss will inevitably lead to battery battery decreased activity, accelerating plate softening, charging shell body heat, from the drum shell, deformation and other fatal injuries.