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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.
source:Industry News release time:2023-10-11 Hits: Popular:AG11 battery
The protection level, commonly known as IP level, is designed to prevent dust and water from affecting the insulation performance of the battery cells, electrical components, control system circuit boards, etc. inside the battery pack and causing corrosion to metal components;
If the protection level of the lithium battery casing does not meet the requirements for dust and water prevention, the environmental conditions of the battery cells and electrical components are in an uncontrollable state. In general working environments, excessive dust can reduce the insulation performance of electrical components. In systems with low protection levels such as electrical clearances and creepage distances, larger allowances need to be reserved. Excessive humidity not only affects insulation performance, but also causes an increase in the self discharge rate of lithium batteries, making conductors more prone to corrosion. Furthermore, the internal resistance of the system increases, and during the charging and discharging process, more electricity will be converted into ohmic heat for consumption.
IP67 dustproof and waterproof lithium battery pack
Product numbers: HDB4073L, HD4074L
Nominal capacity: 1800mAh, 2200mAh
Nominal voltage: 7.4V
Waterproof grade: IP67
Battery size: 90 × twenty × 55mm
Battery weight: 135g, 180g
Product certification: ISO9001:2000, CE, FCC
Storage temperature: -20 ℃ -35 ℃
The IP level of the handheld terminal product of the walkie talkie reflects the waterproof and dustproof capabilities of the walkie talkie and its accessories, especially for outdoor work, which inevitably involves harsh environments with high humidity or dust. The sealing and waterproof capabilities of the walkie talkie and its accessories are crucial to ensuring the safe operation and lifespan of the walkie talkie. To this end, the IEC529 standard has been formulated internationally. In order to adapt to this, the Japanese industrial standard divides the waterproof protection of electronic products into 10 levels, represented by IPX1, IPX2.
The waterproof grade of HDB4073L and HD4074L lithium batteries is IP67, which can completely prevent dust from entering and can withstand water immersion (1m) for more than 30 minutes in a short period of time. At the same time, improvements and updates have been made to the battery cells and circuit boards, adding power management functions to ensure that the number of cycles can reach over 1000, ensuring user needs and battery life.
At present, the battery has been applied to government departments, railway systems, small and medium-sized commercial users, as well as large-scale projects such as national engineering, nuclear power plants, walkie talkies, etc.
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