power bank for galaxy grand duos power bank logo

Specifications

power bank for galaxy grand duos power bank logo

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High Responsibility:Portable power bank charger

1. We are China leading power bank manufacturer.

2. Alibaba Gold Supplier.

3. Inspected by the inspection of Bureau Veritas Certification.

4. 100% QC inspection before shippment.

5. Best quality & service with competitive price.

Free Sample fee:

We provide sample for your test,and we will return your sample fee after received your order.

Company Description

Shenzhen Anxinwei Electronic Technology Co., Ltd. is a high-tech growth company focusing on portable power bank, mobile phone charger and other related products.we produce many specifications, with large capacity, wide compatibility, lightweight fashion and intelligent safety features. In order to provide customers with high quality, reliable, safe and sophisticated products, we perform strictly with ISO9001 quality standards from design, program development and finished product assembly. 

Q1: How long do I need to charge the battery at the first time?

A1: Please fully charge the battery at the first time, and it takes about 2.5-8 hours (depends on the capacity of the battery or how much power it left).

Q2: How long is the life of the mobile charger?

A2: Generally speaking, larger than 500 times. After that, the capacity will get smaller gradually.

Q3: Can these four items be used to charge for iPad?

A3: Yes. 5V/1A is already large enough to charge for iPad.

Q4: Which model can be used to charge two devices at the same time?

A4: have 2 usb output model ..

Q5: How should I store and maintain the charger?

A5: Please store the charger in dry environment and at room temperature, and also keep it with 50% power remaining. It is highly recommended to fully charge the battery once every month to maintain the battery life even if you do not use it.

Q6: I have switched off my mobile phone or have charged it with a high capacity battery alreday, but my phone still cannot be fully charged. Why?

A6: For example, smartphone charging input voltage is 5V and Lithium battery voltage is 3.7V. When using a power bank with Lithium battery to charge a mobile phone, the power energy actually passed through two conversions. So the actual energy efficiency is about 80%.

Q7: What safety protections does the mobile charger have?

A7: Short circuit protection, over-load protection, over-discharge protection, etc.