Battery and charger used for the transmission box of wireless sensors

Battery and charger used for the transmission box of wireless sensors Battery and charger is used for the transmission box of  all the wireless sensors .

Product Introduction

Charger Output voltage: 4.2v

Output current: 400 mA

Input voltage: 110v-240v

Product Specification

Rechargeable Battery Nominal voltage: 3.7v.

Nominal capacity: 4400mAh

Working temperature: -40-70 °c

Product feature and application

Rechargeable Battery, it’s used for the transmission box of  all the wireless sensors.

Product details

The battery is charged by the specified charger. The single-cell battery charging current is <2.5a, and the charging voltage is 4.2 (+0.03)v. If the battery voltage is lower than 3.0v, the battery is charged with 0.25a current. When the battery voltage reaches 3.0v. Then, the standard current is used for charging. If the battery voltage is always lower than 3.0v, the charging is stopped. The battery pack is designed with a protective circuit board to ensure the battery is safe from misuse. The voltage is greater than 4.35 ± 0.05v overcharge protection circuit, the charging current is turned off. When the voltage is between 2.20 and 2.40v, the overdischarge protection starts, the discharge current is turned off, and the current consumption is less than 10μA.When the discharge current exceeds 5.0A, the overdischarge current protection function is activated and the discharge current is turned off. 12.2.3 The battery pack charging temperature range is -20-60 °c; the battery pack discharge temperature range is -40-70 °c; the battery pack storage temperature is -55-80 °c; the battery pack working environment humidity is less than 70%.

Product qualification

All sensors either are EX type or are intrinsically safe. Zone barriers are installed in the Unit. Using well-known brand products at home and abroad, the sensors of mud logging unit have the advantage of technical and performance indicators. At the same time, the service life is long. 6.Delivery shipping and services CNPS can ship the goods to you by Express, Air, or sea .


1.Why do you choose our company?

We are trading company, founded a perfect oil and gas equipment product supply chain. We have worked in the oil industry for about 10 years(follow ISO9001 standard).We will checked our mill every months to make sure their quality. The after-service are charged by ourselves.So we can reply any problem within 24 hours.

2. How can you guanranty your quality?

Every time we will inspect our factories first. This inspect will include the persons, the present products, their scale etc. If everything is ok, we will start to cooperate. During cooperation, we will go to the factories to test the products to guanranty the products has good quality. If it doesn’t meet our requirement, the goods will be refused.

3. Do you have price advantage?

For us, the quality is our first consideration. And the second consideration is the price. We couldn’t say we have the lower price, because of quality issue. We need to say we have the best price.

4. How long do you do the export business?

For our sales persons, they have 8-10years experience to do the international business. They understand each step for the export and do good service for each of our cliets.

Weight 1 kg


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