803860 3.7V 2000mAh best lithium ion batteries

Lion lithium batteries naming method:

Lithium-ion polymer batteries are generally named with 6-7 digits, indicating thickness/width/height respectively. For example, PL803860 indicates a lithium-ion polymer battery with a thickness of 8.0mm, a width of 38mm and a height of 60mm, where PL indicates the battery It belongs to the polymer category. The production process of lithium-ion polymer batteries generally adopts laminated flexible packaging, so the size change is very flexible and convenient, and there are relatively many models.

The shape of the new generation of lithium polymer batteries can theoretically be achieved, and the shapes are diversified, which improves the flexibility of battery modeling design, so that it can be made into batteries of some shapes and capacities according to product requirements, for application equipment developers. Provides a high degree of design flexibility and adaptability in power solutions to maximize product performance. At the same time, the unit energy of lithium polymer batteries is 10% higher than that of ordinary lithium-ion batteries. Compared with lithium-ion batteries, its capacity and cycle life are greatly improved.

Apart from cell, let us discuss the PCM(protection board). It equips with IC chip and Moseft to the protection of lithium-ion battery from overcharge、over discharge over current and short-circuit. The following are condition adapting characteristics:

1. High/low temperature
   Testing instruction: After the cell fully charged at 23℃±2℃,measure the discharging capacity with discharging current 0.2 C5A till 3.0 (V) cut off voltage at different temperature. (as compared with initial capacity）
   Requirements: At -10℃:≥70%; At 55℃:≥95%
2. Invariableness humid and hot
   Testing instruction: After putting the cell in the invariableness humid and hot box of 40℃±2℃ and relative humidity of 90～ 95% for 48 hours. Discharge the cell to 3.0*n(V) cut-off voltage at 0.2 C5A current.
   Requirements: No leakage, no fire, no explosion.The discharging time ≥3h.
3. Low pressure
   Testing instruction: Put the fully charged cell in a vacuum chamber at ambient temperature 20~25℃ for 6 hrs. The vacuum environment reassure is set to be less than 11.6kPa, simulating an altitude of 15240m.
   Requirements: No leakage, no fire, no explosion

Lithium battery bank features:

It has many advantages such as high specific energy, miniaturization, ultra-thinning, lightweight and high safety. Based on this advantage, lithium polymer batteries can be made into any shape and capacity.
The battery can meet the needs of various products, and it uses aluminum-plastic packaging, and internal problems can be immediately manifested through the outer packaging. Even if there is a safety hazard, it will not explode, but will only swell.

FAQ of lithium battery power:

1. How to increase lithium polymer battery life?
   Try to use the charger produced by the original factory. It is best to charge slowly, not fast.
2. How to build a lithium-polymer battery pack?
   First place the lithium batteries in an orderly manner, and then use materials to fix each cells of lithium batteries. After fixing each cells, use insulating materials such as highland barley paper to separate each string of lithium batteries to prevent damage to the outer skin of the lithium batteries and cause short circuits in the future.

   Once aligned and secured, the nickel tape can be used for the most important tandem steps. After the steps are completed, only the follow-up processing is left. Bundle the lithium battery with tape, and cover the positive and negative poles with highland barley paper first, so as to avoid short circuit due to mistakes in subsequent operations.

3. How does a lithium polymer battery voltage drop?
   Any battery is subject to self-discharge. The consistency of self-discharge of polymer lithium batteries is an important part of the influencing factors. Batteries with inconsistent self-discharge will have large differences in SOC after a period of storage, which greatly affects its capacity and safety.