The open-circuit voltage must be measured before the installation of the lithium-ion iron phosphate battery pack. The difference of the open-circuit voltage should not be greater than 50mV. The battery should be tested and recorded well.
Although the lithium-ion iron phosphate battery pack in the factory, the positive and negative plates are charged, discharge activation. If iron phosphate lithium-ion battery pack installation date from the date of time far away, the iron phosphate lithium-ion battery pack after a long period of self-discharge, capacity is bound to have a loss, additional iron phosphate lithium-ion battery pack in the factory are generally about 60% load capacity, so the initial installation should supplement electricity on the lithium-ion battery pack. Moreover, due to the difference in the self-discharge size of the single battery, the terminal voltage of each battery may be unbalanced.
Before the installation of the new lithium-ion iron phosphate battery pack, the open-circuit voltage must be measured and the battery test record must be made. With fake can load on the battery pack according to 0.1 C10 C5 (A) and 0.2 (A) hourly rate for capacity test, the test also can don't answer the battery management system, as long as the battery pack can be together, but must be strictly tested battery monomer in the process of discharge voltage, total test per hour when the battery voltage, discharge current, the single battery voltage is measured and record, the battery discharge in the discharge every 10 minutes late testing battery low voltage monomer battery, if there is A battery terminal voltage to 2.5 V stop discharging, calculate the actual battery discharge capacity and rated capacity of the battery is almost the same, If the battery discharge test is basically consistent and qualified, then charge the battery.
If the discharge to the termination voltage, the battery released capacity, and the rated capacity of the difference is too big (more than 15%), indicating that the factory capacity of the lithium-ion battery pack may have a problem, should contact the relevant manufacturers to deal with.
How to properly maintain lithium-ion iron phosphate battery 1. The temperature is not too high
If the UPS battery is used above the specified operating temperature, that is, above 35C, the battery power will continue to decrease, that is, the battery power supply time will not be as long as usual. If you have to charge the device at these temperatures, the damage to the battery will be even greater. Even if the battery is stored in a hot environment, it will inevitably cause corresponding damage to the quality of the battery. Therefore, as far as possible to maintain the appropriate operating temperature is a good way to extend the life of lithium batteries.
2. Too low is not good
If in the low-temperature environment, that is, the use of lithium below 4C, the UPS battery will also be found to reduce the use of time, some of the mobile phone's original lithium in the low-temperature environment can not even charge. But don't worry too much, this is just a temporary situation, unlike using it in a high-temperature environment. Once the temperature rises, the molecules in the battery heat up, and they immediately return to their previous charge.
3. Life lies in movement
To get the most out of a lithium-ion iron phosphate battery, you need to use it frequently to keep the electrons flowing. If you do not often use lithium batteries, please remember to complete a charging cycle for lithium batteries every month, do a charge calibration, that is, deep charging once.
4. Do not mix the battery with metal objects, so as to avoid metal objects touching the positive and negative poles of the battery, causing a short circuit, damage to the battery, and even danger.
5, lithium iron phosphate battery should be in a clean, dry, ventilated environment, should prevent contact with corrosive substances, away from the source of fire and heat source.
