丰田48V叉车电瓶VGD565一般是日本GS型号，配套日本丰田电动叉车使用，可用5年以上，贝朗斯品牌延续GS技术配方，加以改良，寿命也长达五年以上，价格更加低廉， 传统的比较成熟的测试方法是用继电器和大的电解电容做隔离处理，其基本的测试原理是：首先将继电器闭合到蓄电池一侧，对电解电容充电；测量时把继电器闭合到测量电路一侧，将电解电容和蓄电池隔离开来，由于电解电容保持有该蓄电池的电压信号，因此，测试部分只需测量电解电容上的电压，即可得到相应的单体蓄电池电压。论文大全。此方法具有原理简单、造价低的优点。但是由于继电器存在着机械动作慢，使用寿命低等缺陷，根据这一原理实现的检测装置在速度、使用寿命、工作的可靠性方面都难以令人满意。为解决上面问题可将机械继电器改用光耦继电器，这样无需外加电解电容提高了可靠性，速度和使用寿命也随之达到要求，但相对成本要大大提高。用光电隔离器件和大电解电容器构成采样,保持电路来测量蓄电池组中单只电池电压。此电路缺点是: 在A/D转换过程中,电容上的电压能发生变化,使精度趋低,而且电容充放电时间及晶体管和隔离芯等器件动作延迟决定采样时间长等缺点。 丰田叉车蓄电池VGD565是比较*的型号，适用2吨、2.5吨叉车蓄电池组，蓄电池的寿命可分为循环寿命、浮充寿命和存放寿命。蓄电池的容量减小到规定值以前,蓄电池的充放电循环次数称为循环寿命。在正常工作条件下,蓄电池浮充供电的时间,称为浮充寿命。通常免维护电池的浮充寿命可达到10年以上。循环寿命与电池每次放电的深度有密切关系。放电深度为30%时,充放电循环次数可达1200次;放电深度为100%时,循环寿命仅有200次。因此使用中应当尽量避免电池深度放电。根据加速寿命试验的结果,免维护阀控电池在室温下,浮充寿命可达10年以上。应当说明,浮充电压过高或过低,会使蓄电池过充电或欠充电,因而将影响电池的寿命。
 

丰田叉车蓄电池由于自放电作用,存放过程中,免维护电池的剩余容量将逐淅减少,通常,电池剩余容量下降到50%的时间,称为存放寿命。在不同的温度下,电池的剩余容量与存放时间有一个对应的关系。当环境温为25℃时,存放寿命可达18个月。当环境温度为40℃时,存放寿命只有5个多月,因此免维护电池的存放温度不能太高。

蓄电池的使用寿命与环境温度关系很大。通常来说,若以25℃为基准,平时不能超过+15度～+30度。温度升高,电池组放电容量会增加,但寿命降低,如果在高温下长期使用,工作环境温度每上升10℃,蓄电池的使用生命减半。若温度太低,会使蓄电池容量下降,温度每下降1度,其容量下降1%。

所以,当电源处于浮充工作状态时,需要通过降低浮充电压来进行补偿,补偿系数为环境温度每上升1℃,每节电池单体(12 V的单体)的浮充电压降低18-30mV。 但是温度补偿功能只能在一定的范围内起作用,蓄电池*好是工作在20-25℃的环境下。如果蓄电池电压在放出其额定容量80%(对照相应放电率的容量如C10、C3等参数)之前已低于10.8V/单格(1小时率放电为10.5V/单体),则应考虑加以更换。TOYOTA 48V VGD565 forklift battery is Japan's GS model, supporting the Japanese TOYOTA electric forklift, available for more than 5 years, Bei rance brand extension GS formula, be improved, life for five years or more, the price is low, the mature test method is a traditional relay and electrolytic capacitor of isolation treatment the basic principle is: first test the relay closed in the side of the battery charging of the electrolytic capacitor; when measuring the side relay is closed to the measuring circuit, the electrolytic capacitor and battery isolated, because the electrolytic capacitor maintains the battery voltage signal, www.ccsobattery.com

so the test part only measuring the voltage of electrolytic capacitor, can be obtained the corresponding monomer battery voltage. Dissertation. The method has the advantages of simple principle and low cost. However, due to the slow mechanical movement and low service life of the relay, the detection device based on this principle is difficult to satisfy the speed, the service life and the reliability of the work. In order to solve the above problems, the mechanical relay can be switched to an optocoupler relay, so that without additional electrolytic capacitors, the reliability can be improved, and the speed and service life will be met, but the relative cost will be greatly improved. A sample and hold circuit consisting of a photoelectric isolation device and a large electrolytic capacitor is used to measure the voltage of an individual battery in a battery pack. The disadvantage of this circuit is that in the process of A/D conversion, the voltage on the capacitor can be changed, the precision tends to be low, and the charging and discharging time of the capacitor, the transistor and the isolating core and other devices are delayed and the sampling time is long.
TOYOTA forklift battery VGD565 is more popular models, for 2 tons, 2.5 tons of forklift batteries, battery life can be divided into the life cycle, floating life and storage life. When the capacity of the battery is reduced to the specified value, the cycle of charging and discharging of the battery is called the cycle life. Under normal operating conditions, floating power supply time, called floating life. Usually the maintenance free battery float life can reach more than 10 years. The cycle life is closely related to the depth of each discharge of the battery. When the discharge depth is 30%, the charge discharge cycle is up to 1200 times. When the discharge depth is 100%, the cycle life is only 200 times. Therefore, battery deep discharge should be avoided as far as possible. According to the results of accelerated life tests, maintenance free valve regulated battery at room temperature, floating life up to 10 years. Should explain that the float voltage is too high or too low, will cause the battery overcharge or undercharge, which will affect the battery life.
TOYOTA forklift battery due to self discharge, storage process, the residual capacity of the battery free of maintenance will be reduced by intermittent, usually, remaining battery capacity decreased to 50% of the time, called the storage life. At different temperatures, the residual capacity of the battery has a corresponding relationship with the storage time. When the temperature is 25 degrees, the storage life can be up to 18 months. When the ambient temperature is 40 degrees, the storage life is only more than 5 months, so the storage temperature of the maintenance free battery can not be too high.
The service life of the battery is very important to the temperature of the environment. Generally speaking, if 25 degrees as the benchmark, usually can not exceed +15 degrees to +30 degrees. When the temperature increases, the discharge capacity of the battery will increase, but the life will be reduced. If the temperature is prolonged for 10 years, the life of the battery will be reduced by half. If the temperature is too low, will reduce the capacity of the battery, the temperature drops 1 degrees each time, its capacity decreased by 1%. So, when the power supply in the floating charge state, by reducing the floating voltage to compensate, compensation coefficient for environmental temperature increase of 1 degrees, each battery monomer (12 V monomers) float voltage reduced 18-30mV. However, the temperature compensation function can only work within a certain range, and the storage battery is better at working at 20-25 degrees centigrade. If the battery voltage in the release of its rated capacity (80% of the control rate of discharge capacity such as C10, C3 and other parameters) is lower than that of 10.8V/ cells (before 1 hours for the discharge rate of 10.5V/ monomer), should be considered to be replaced.