Purchase Notes：
Due to the misunderstanding of this product, it is specifically stated that the order is known as follows：
1. The battery direction of all battery cases is subject to the PCB board.
2. The product is only a circuit board, does not contain a battery, battery box and BMS are purchased separately
3. If used as a multi-layer battery station, select a piece with a protective plate, and the remaining options do not have a protection plate. The protection plate can provide a balance equalization function for the entire multi-layer battery case, without having to add a protection plate to each layer.
48V battery box
Product information Before designing the 48V battery box, we had 3s12V, 6s24V, and 7s29V, but many buyers also wanted higher voltage, so we designed this 48V battery box. This battery box is made up of 13 batteries in series. The batteries are installed on both sides of the circuit board. The size of the previous 7s battery box is similar to that of the previous 7s battery box. There is no change in the overall position of the 6s battery. Take a 3000 mA battery for example, a circuit board full of batteries is 48v3ah, and you can stack the number of battery boxes according to your actual needs. We 've got two for you, 20A and 45A. In terms of volume, 45A is much larger than 20A, but the function is similar. If there is no particularly high power requirement, 20A is recommended. The protective plates have the functions of charge and discharge protection, discharge current protection, temperature protection, voltage equilibrium, and balance impulse. Each circuit board has a 15a insurance policy. If one battery has a problem, it will not affect other batteries. Product parameters Note:It is best to choose the protective plate to place the order together when placing the order. To avoid overcharging and voltage imbalance during use, it is best to choose our special charger. If other chargers, you need to choose DC connector's 45ABattery box （45A） Weight : 175g Size : 172*90*45mm 45A Protection Board（45A with Panel） Weight: 124g Size ： 175*90*17mm Voltage: 48V Electric current:Depending on battery performance 20ABattery box （20A） Weight : 164g Size : 170*90*33mm 20A Protection Board（45A with Panel） Weight: 122g Size ： 177*90*18mm Voltage: 48V Electric current : Depending on battery performance Direction for use After receiving, the battery can be installed directly. The orientation and polarity of the battery installation are based on the symbol on the circuit board. Use skills Recently we have found that our battery box products ask a lot of customers, and we don't understand the use of this battery box yet. In the title, 3s means three batteries in series. Only three batteries can be on the circuit board, and the rated output voltage is 11. 1 v. (Full 12.6 V, finish 8.7 V) In the title, 6s means six batteries in series. Only six batteries can be used on the circuit board. The rated output voltage is 22.2 v. (full of 25.2 V, finish 17.4 V), the upper and lower layers are superimposed to increase capacity without changing the voltage. When installing the battery, the orientation of the battery must be the same, and the positive poles of all batteries are facing the same-side. The output power of the battery box is determined by the performance of the battery, and the better the battery performance, the greater the output current. The voltage will change during battery charging or discharge. The protective plate of the product does not have a stable output voltage. The voltage filled by the battery is different from the voltage discharged, so the voltage will change. First, determine the capacity you need. If you use it as a simple battery storage energy, take 3000 mA(3AH) per cell, and normal lithium battery rating 3.7 V as an example, with 100 % ideal conversion efficiency. (1) Each layer of 3s is voltage 3.7 V * 3 = 11.1 V capacity 3000 MAH energy 3.7 V * 3 * 3 AH = 33wH. (2) Each layer of 6s is the voltage 3.7 V * 6 = 22.2 V capacity 3000 MAH energy 3.7 V * 6 * 3 AH = 66. 6wH. (3) Buy the number of layers according to your capacity requirements. If you are a backup power source for your home appliance or a reserve battery for U AP S, you need to know the power of the home appliance and the time of use. Take 3,000 mA(3 AH) batteries per section and 3.7v of normal lithium batteries as an example, with a 100 % ideal conversion efficiency. (1) 100 W of home appliances for 1 hour requires: 100 wH / 1 1.1 wH per section = 9 batteries. 100W of home appliances need 2 hours: 100wH * 2 / 1. 1wH = more than 18 batteries.Analogous analogy. (2) 500W for home appliances 1 hour: 500wH/11.1 WH = more than 45 batteries per section. The use of 500W home appliances takes 2 hours: 500wH * 2/1 .1 wH = 90 or more batteries in turn. (3) Choose a different number of panels after knowing the number of batteries Second, after knowing the capacity, you need to determine the voltage or power supply of the appliance. (1) If you want to use it as a charging device for mobile phones or other USB chargers, you need to purchase a pressure-relief USB module to reduce 12 or 24V to 5V(available at the store). (2) If you want to supply DC appliances or modules, if the voltage required by the appliance is higher than the voltage of the battery box, you need to purchase the booster module. If the voltage of the appliance needs to be lower than the voltage of the battery box, you need to purchase the pressure-relief module. If the voltage of the appliance is within the voltage range of the battery box, it is necessary to purchase the lifting pressure module. Here are the battery box charging tips 1, the limit of battery box protection plate charging is 8A, the charging current of each layer of battery is not recommended to exceed two amps. If there is only one battery box, it is recommended to select a charger with a current lower than two amps. If it is a two-layer battery and recommended to choose a charger up to 4A. By analogy, if the current is excessive, the battery will heat up or damage. 2, charger must choose constant current charger, can not choose constant pressure power supply, constant pressure power supply will cause the battery to heat up. 3, 3 s needs 12. The 6-volt charger can be filled, and the 6S needs a 25.2 Volt charger to be filled. If the voltage is below this value, it will be dissatisfied. If the charger voltage is more than 1 Volt this value may cause damage to the protective plate. 4, if there is no suitable voltage charger, or only constant voltage power supply, we can choose the constant current lift pressure module, the ordinary constant voltage power supply into an adjustable current constant current power supply. If you use a solar panel to charge the battery, you need to bring your own voltage control module. If the output voltage of the solar panel is too low, you need to increase the pressure boost module. If the output voltage of the solar panel is too high, you need to increase the pressure relief module. The specific wiring can contact us.
