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Yuyao Ollin Photovoltaic Technology Co., Ltd.
Yuyao Ollin Photovoltaic Technology Co., Ltd Factory Address:Xinlang Road Wanyang Industrial Park No.2 Block 1/2nd floor Langxia Town, Ningbo Yuyao City,Zhejiang Province ,China
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Polyester Material Solar Powered Bookbag USB Output Portable Charger For Cell Phone

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Polyester Material Solar Powered Bookbag USB Output Portable Charger For Cell Phone

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Brand Name : OLLIN PV

Model Number : OEM

Certification : CE

Place of Origin : zhejiang Pr. China

MOQ : 1 piece

Price : negotiation

Supply Ability : 2300PCS PER month

Delivery Time : 20DAYS

Packaging Details : 1PC per carton,

Material : monocrystalline silicon

Inside Material : Nylon

Connector : USB+DC

Application : Commercial

Bag Material : Polyester

HS Code : 850760090

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solar panels powered for Solar Charger Bag charger backpack USB Output portable charger for all mobile phones

Solar chargers on the market


Portable solar chargers are used to charge cell phones and other small electronic devices on the go.

Chargers on the market today use various types of solar panels, ranging from thin film panels with

efficiencies from 7-15% (amorphous silicon around 7%, CIGS closer to 15%), to the slightly more efficient

monocrystalline panels which offer efficiencies up to 18%.


The other type of portable solar chargers are those with wheels which enable them to be transported from

one place to another and be used by a lot of people. They are semi-public, considering the fact that are

used publicly but not permanently installed. A good example of this kind of portable solar charger is the

Strawberry Mini device.


Electrical Characteristics

Solar backpack with 6.5W solar panel with 10000 mah power bank
Bag material Polyester
Bag Size 52cm*35cm*22cm
Solar panel Sunpower brand cell, High efficiencty ,
transfer rate 22%
Power 6.5W ,6V
Accessories 1 pcs solar bag, 1 pcs 6.5W solar panel, 1 pcs USB charging cable.
1 pcs 10000 mah power bank

ITEM NO 5W/18V
MONO or POLY poly
Maximum power (Wp) 5wp
Maximum power voltage (V) 18
Maximum power current (A) 0.27
Open circuit voltage (V) 21.6
Short circuit current (A) 0.29
Number of cells (Pcs) 36
Size of module (mm) 269x179x18
Brand Name of Solar Cells HT
Maximum system voltage (V) 715
Temperature coefficients of Isc (%) 0.065+/-0.015%/°C
Temperature coefficients of Voc (%) -(2.23+/-0.1)mv/ °C
Temperature coefficients of Pm (%) -(0.5+-0.05)/ °C
Temperature coefficients of Im (%) +0.1/ °C
Temperature coefficients of Vm (%) -0.38/ °C
Temperature Range -40°C~+85°C
Tolerance Wattage (e.g. +/-5%) +/-5%
Surface Maximum Load Capacity 60m/s(200kg/sq.m)
Allowable Hail Load steel ball fall down from 1m height
Weight per piece (kg) 0.6
Length of Cables (mm) 3m
Cell Efficiency (%) more than13%
Module Efficiency (%) more than 8%
Output tolerance (%) +/-5%
Frame (Material, Corners, etc.) Aluminum
Standard Test Conditions AM1.5 100mw/cm2 25°C
Warranty 2 years product warranty and 25years 80% of power
FF (%) 75%
Packing 10PCS/ CTN
Unit Price


What are Solar Panels Made of?


Photovoltaic (PV) solar panels are made up of many solar cells. Solar cells are made of silicon, like

semiconductors. They are constructed with a positive layer and a negative layer, which together create an

electric field, just like in a battery.

How Do Solar Panels Generate Electricity?


PV solar panels generate direct current (DC) electricity. With DC electricity, electrons flow in one direction

around a circuit. This example shows a battery powering a light bulb. The electrons move from the negative

side of the battery, through the lamp, and return to the positive side of the battery.


With AC (alternating current) electricity, electrons are pushed and pulled, periodically reversing direction,

much like the cylinder of a car’s engine. Generators create AC electricity when a coil of wire is spun next to

a magnet. Many different energy sources can “turn the handle” of this generator, such as gas or diesel fuel,

hydroelectricity, nuclear, coal, wind, or solar.


AC electricity was chosen for the U.S. electrical power grid, primarily because it is less expensive to

transmit over long distances. However, solar panels create DC electricity. How do we get DC electricity into

the AC grid? We use an inverter.



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