18650 rechargeable battery lithium 3.7v 3500mah
CH
About Us
Company Profile Development History Sales Network Partner Social Responsibility
Products
Rechargeable Battery Battery Packs Energy Storage Battery Primary Battery Handicraft Article
Subsidiary Company
SINO TECHNOLOGY SUNBEAM GREEN POWER DATAPOWER SEONG-HEE STD
Honor
Qualification Certificate Patent Certificate Honor Certificate
R&D
R&D Center Test Center
News
Company News Industry News
Contact Us
Other information
product
polymer lithium battery Primary battery Rechargeable Battery LR03 alkaline battery
18650 rechargeable battery lithium 3.7v 3500mah
18650 rechargeable battery lithium 3.7v 3500mah

Other information

Home  >  Other information

Lithium battery protection.NiMH No.7 batteries

release time:2023-08-04 Hits:     Popular:AG11 battery

  

  When designing a battery system, there must be at least two safety lines. A common misconception is to use a charger (adapter) directly to charge the battery pack. This will completely transfer the responsibility of overcharging protection to the protective plate on the battery pack. Although the failure rate of the protection board is not high, even if the failure rate is as low as one in a million, the probability of explosion accidents occurring globally is still daily.

  If the battery system can provide two separate safety protections for overcharging, discharging, and overcurrent, and if the failure rate of each protection is one in ten thousand, the two protections can reduce the failure rate to one in one hundred million. The block diagram of a common battery charging system is shown below, which includes two main parts: charger and battery pack. The charger also includes two parts: an adapter and a charging controller. The adapter converts AC power into DC power, while the charging controller limits the maximum current and maximum voltage of DC power. The battery pack consists of two main parts: a protective plate and battery cells, as well as a PTC to limit the maximum current.

  Text box: adapter AC to DC text box: charging controller current and voltage limit text box: charger text box: protective board for overcharging, discharging, overcurrent, etc. Text box: battery pack text box: current limit plate text box: battery cell

  Taking the mobile phone battery system as an example, overcharging protection is achieved by setting the output voltage of the charger at around 4.2V to achieve the first layer of protection. This way, even if the protective board on the battery pack fails, the battery will not be overcharged and pose a danger. The second protection is the overcharge protection function on the protection board, usually set to 4.3V. In this way, the protection board usually does not need to be responsible for cutting off the charging current, and only needs to be activated when the charger voltage is abnormally high. Overcurrent protection is handled by protective plates and current limiting plates, which are also two protective measures to prevent overcurrent and external short circuits. Due to over discharge, it only occurs during the use of electronic products. Therefore, the general design is to provide first to second protection by the circuit board of the electronic product, while the protective board on the battery pack provides second protection. When electronic products detect a supply voltage below 3.0V, they should automatically shut down. If this feature is not designed during the design of the product, the protection board will close the discharge circuit when the voltage drops to 2.4V. In summary, when designing a battery system, it is necessary to provide two separate electronic protections for overcharging, discharging, and overcurrent. The protective plate is the second layer of protection. Remove the protective board and charge it. If the battery explodes, it indicates poor design.


Read recommendations:

Coin Battery CR 927

What is a ternary lithium battery?lifepo4 48v 100ah lithium ion battery

Wide - Temperature Lithium - Ion Batteries

2200mah 18650 battery

18650 battery 3.7v 6000mah

Last article:Dilute lithium silicate battery.3.7v 2200mah 18650 lithium battery

Next article:Electronic Protection of Lithium Batteries.polymer lithium battery

Popular recommendation

602030 polymer battery

2023-03-22

18650 lithium battery cells sales

2023-03-22

602248 battery direct sales

2023-03-22

801752 battery Processing

2023-03-22

Battery Packs direct sales

2023-05-09

LR03

2022-12-07

18650 2500mAh 3.7V

2022-08-19

521133 160mAh 3.7V

2022-08-19

6F22

2022-07-04

551521 130mAh 3.7V

2022-08-19

3.2V 280Ah

2022-10-12

Cabinet type energy storage battery 10KWH

2022-11-08

701221 120MAH 3.7V

2023-06-10

Lithium Battery GN4825

2022-08-19

LR6

2022-11-22

801620 battery

2023-06-25

CR1632 battery

2023-06-25

2025 button cell battery

2023-06-25

18650 3500mah battery

2023-06-25

LR626 battery

2023-06-25

Lifespan of Cylindrical Lithium - ion Batteries

2025-03-14

401030 battery.Lithium ion batteries

2023-10-24

Applications of Cylindrical Lithium Batteries in Power Tools

2025-04-26

Master the three major characteristics of lithium iron phosphate battery.48v solar power energy stor

2023-03-15

Why is it full of nickel -metal hydride battery charging.solar energy storage lithium ion battery 15

2023-04-04

AAA Dry Battery.Methods to ensure the safety technology of 18650 lithium-ion batteries

2023-10-13

Classification of lithium battery separators.18650 lithium battery cells

2023-07-20

What is the effect of lithium battery set polar tablets on battery performance.51.2v solar energy st

2023-03-28

What are the characteristics of lithium iron phosphate batteries?solar energy battery storage system

2023-05-17

Why is lithium iron phosphate battery more expensive than ternary lithium batteries.Column rechargea

2023-03-28
360° FACTORY VR TOUR
lithium ion battery 18650 priceWhatsapp
lithium ion battery 18650 price

lithium ion battery 18650 priceTel
+86 19925278095

lithium ion battery 18650 priceEmail
admin@sino-techgroup.com

TOP