How secure is your system? The battery frequently encountered in the term is: NiCl and NiMH batteries used in the constant current and used in lithium ion and lithium polymer battery constant current/constant pressure .With constant current to NiCd battery. Some low cost charger with absolute temperature terminate the charge. Basic dyes Although simple, low cost, but the charging method are not accurate termination. A better method is to use the method of detecting voltage drop end charging. -train V method for charging at a rate of 0.5 C or higher rate of NiCd battery is the most effective. FM 200 Train V charging terminated testing should be combined with the battery temperature measurement, because metamorphic battery and mismatch battery can reduce train V.Can use testing temperature increase the charging detection method than the fixed temperature termination methods better. HFC 227ea Based on dT/dT and-train V termination of charging terminate method combined method has a longer life cycle, can avoid charging.Fast charging efficiency can be improved. In 1 C efficiency close to 1.1 when to 0.1 C charge, efficiency to a 1.4 (71%), charging time for 14 hours or so. CHILDREN BED Because of the battery receive degrees NiCd charge close to 100%, so start charging 70% during absorption in almost all of the energy, and the battery keep small cold. Super fast charger using the added a few times electric current is equal to the C rate, and no heat generated. DORM BED After the 70% level, batteries to lower rate continue to charge, until the batteries electricity so far. Finally, add 0.02 ~ 0.1 C Juan flow over the battery.Despite the NiMH battery charger and NiCd charger similar, but the NiMH battery charger dT/dT method, this is the best way to NiMH batteries. wrought iron bed NiMH battery charge over voltage drops are small, and for small charge rate (less than 0.5 C, depending on the temperature) can be completely without voltage drop.New NiMH batteries in charge cycle appear prematurely unreliable peak, it will lead to a charger an early end to the charge. bunk bed In addition, the-train V detection of charging protection can end charging, and charging itself in battery failure before limit the number of charging/discharging, in all conditions seems to have no available-dV/dt algorithm can make NiMH batteries more effective. Cell phone charger Based on this reason, can't use NiCd NiMH battery charger for, unless it is used with dT/dT method terminate the charge. Because the NiMH battery don't absorb charging, so, Juan flow charging must NiCd than small. phone charger Slow NiMH battery charging is more difficult, it is 0.1 C and 0.3 C range rate of voltage and the C temperature distribution can not provide enough with the state of the electric precise instructions. Therefore, slow charger must rely on the timer to indicate when charging cycle should be ended. So, in order to make the NiMH batteries electricity, should put close to 1 fast charging, and monitor voltage and temperature to determine when to charge should be ended.RJY