Lithium Battery 3.7V Lithium Polymer Battery 3.2V LifePo4 Battery 1.2V Ni-MH Battery Button Coin Battery
3.7V Battery Pack 7.4V Battery Pack 11.1V Battery Pack 14.8V Battery Pack Other Battery Pack
Sino Science&Technology Battery Co.,ltd is a high-tech production enterprise which specialize in the R&D and production of Lifepo4 batteries,energy storage battery,portable UPS power supply,personalized customization lithium battery pack etc .
Environmental cylindrical 18650 21700 32700 26650 14500 18500 lithium ion rechargeable battery, LifePO4 battery,3.7V lithium polymer battery, NiMH battery , NiCD battery ,Lead acid battery,dry cell battery ,alkaline battery ,heavy duty battery, button cell battery etc. we devote to R&D,innovation ,production & sales
Shenzhen Green Power Energy Battery Co.,ltd specializes in a wide range of digital battery such as environmental cylindrical 18650 21700 32700 26650 14500 18500 lithium ion rechargeable battery, LifePO4 battery, 3.7V lithium polymer battery, NiMH battery, NiCD battery, dry cell battery, alkaline battery, heavy duty battery, button cell battery etc. we devote to R&D, innovation, production & sales. With automatic production machines we have been exported goods to all over the world over 15years. We have complete exported certificate such as KC, CE, UL, BSCI, ROHS, BIS, SGS, PSE etc
Dongguan Datapower New Energy Co.,ltd is a high-tech production enterprise which specialize in the R&D and production&sale of lithium polymer batteries,drone battery,airplane batteries &battery pack etc.
Anhui Seong-hee New Energy Technology Co.,ltd is a high-tech production enterprise which specialize in the R&D and production of primary batteries. And mainly produces and sells alkaline batteries & carbon zinc batteries. there are size AA, AAA, C, D, 9V etc
Guizhou STD Battery Co.,ltd is a high-tech production enterprise which specialize in the R&D and production & sale of lithium polymer batteries, drone battery, airplane batteries & battery pack etc.
release time:2024-03-04 Hits: Popular:AG11 battery
Although today's lead-acid batteries have been greatly improved in terms of structural design and raw materials used, and their performance has been greatly improved. Many maintenance-free lead-acid batteries with excellent design and materials have a theoretical life of 15~ More than 20 years, but there are probably very few batteries that can actually reach such a lifespan in use. Take the dry-charge low-maintenance starting lead-acid batteries widely used in cars and motorcycles as an example. The designed service life is more than 4 to 5 years. Through investigation, it is found that few can reach the above level, and most of them last for several months to one year. He died young in 2010. Investigating the reasons, we believe the following are the following:
1) The design of the charging equipment is not perfect enough and it is not convenient to use.
2) Lead-acid batteries cannot be recharged in time after being discharged, especially over-discharge, which can cause fatal damage to the battery.
3) The products of a few manufacturers are of poor quality and are passed off as good.
For the above reasons, we believe that 2) and 3) are technically easier to prevent and do well, but 1) involves technical problems that are difficult to solve. Let’s focus on the problems in this area.
2 Battery charging technical requirements
The technical indicators for guaranteed service life of lead-acid batteries provided by the manufacturer are given when the ambient temperature is 25°C. Since the voltage of a single lead-acid battery drops by about 4mv for every 1°C rise in temperature, a 12V battery consisting of six single cells connected in series has a float charge voltage of 13.5V at 25°C; when the ambient temperature drops to 0 °C, the float charge voltage should be 14.1V; when the ambient temperature rises to 40°C, the float charge voltage should be 13.14V. At the same time, lead-acid batteries also have a characteristic. When the ambient temperature is constant and the charging voltage is 100mv higher than the required voltage, the charging current will increase several times. Therefore, it will cause thermal runaway and overcharge damage of the battery. When the charging voltage is 100mv lower than the required voltage, the battery will be undercharged and the battery will be damaged. In addition, the capacity of lead-acid batteries is also related to temperature. For every 1°C decrease in temperature, the capacity will decrease by 1%. Therefore, manufacturers require users of lead-acid batteries to discharge 50% of the rated capacity in summer and 25% in winter. It should be charged in time.
Obviously, lead-acid batteries in daily use cannot be exposed to an environment of 25°C for a long time. There are still morning, noon and night temperature changes in a day, not to mention that there are even greater temperature changes in spring, summer, autumn and winter in a year. Temperature difference, so the various thyristor rectifier types, transformer step-down rectifier types, and general switching power supply type lead-acid battery chargers commonly used on the market currently charge the battery in a constant voltage or constant current mode. It cannot meet the strict technical requirements for recharging lead-acid batteries. Looking at the methods used in the past to charge lead-acid batteries, as well as the lead-acid battery chargers developed based on these methods, it is not difficult to see that the technology is not perfect enough. Using these products to charge lead-acid batteries will inevitably lead to direct charging. Affecting the service life of lead-acid batteries, these chargers also have problems such as narrow operating voltage adaptability range, large size, low efficiency, and poor safety factor.
Read recommendations:
What are the types of low-temperature batteries used according to their environment?3.7 volt 18650 l
18650 battery 3500mah.On the Self Protection Function of Lithium Batteries
Last article:button cell battery cr1620.Solar cell assembly process and selection
Next article:CR1225 battery.36v lithium battery protection board wiring
Popular recommendation
lithium ion battery energy storage manufacture
2023-05-10battery 18650 rechargeable
2023-03-22401030 battery manufacture
2023-03-22portable energy storage battery manufacturer
2023-05-1018650 800mAh 3.7V
2023-03-22LR14
2022-11-22401030 90mAh 3.7V
2022-08-19801520 180mAh 3.7V
2022-06-27R14
2022-07-01102540 1100mAh 3.7V
2022-08-19LR14
2022-12-07902030 500mAh 3.7V
2022-08-193.2V 50Ah
2022-10-12Lithium Battery LQ12-06
2022-08-19Lithium-ion battery GN500
2022-08-24NiMH No. 7
2023-08-044LR44 battery
2023-06-25lithium battery 18650 3.7v
2023-06-25Nickel Hydride Batteries
2023-06-2518650 lithium 3.7 battery
2023-06-25Open circuit voltage and resistance of lithium batteries.3.7 volt 18650 lithium battery
2023-07-07How to Do a Lithium - Battery Assembly Business
2025-04-15What are the safety characteristics of lithium-ion batteries and nickel hydrogen batteries respectiv
2024-09-12High Temperature Resistance of Lithium-Ion Batteries
2024-12-12The principle of ternary polymer lithium-ion batteries
2024-05-27Battery discharge by yourself.3.7V 18650 lifepo4 battery
2023-07-13Analysis of Lithium iron phosphate industry technology and product status.lithium polymer battery
2023-07-24Li/SOCl2 battery.CR2032 battery
2023-08-16Can lithium battery manufacturers help you understand how to use drone lithium batteries correctly?1
2023-08-18Battery model.lithium 3400mah 3.7v 18650 battery
2023-07-07