how can i charge a LiPo battery ?

[FYP]

hi again

I want to use a LiPo battery for my recent project as its cheap and efficient.
the problem is the battery that i found has the following specifications:
7.4V, 800mA, 10 cell
and the LiPo charger i found have the following specifications:
7.4V, 600mA, 2 cell

as you can see, the charger is for 2 cell battery, i dont know if it can be used for the given battery (10 cell )
what i know is the time that normal battery takes to get charged is calculated by divide the capacity of the battery by the charge rate of the charger, then increase the amount of time by about 20% to allow for a certain amount of inefficiency, but im still not sure about charging a 10 cell battery with a 2 cell charger !

these are the pictures for the battery and the charger:

please guide me

thank you

 

[audioguru2]

10C printed on the battery is not 10 Cells, it is the max allowed load current that is 10 times the rating of the battery. The battery is rated at 800mAh so it can have a max load current of 8A.

The battery says for you to read its safety instructions. It will probably say not to charge it at a current higher than 400mA but the charger you found is made for bigger batteries. Its output is 600mA which might cause your little battery to catch on fire.

 

[FYP]

sorry but how did you know (or assume ) that the battery should not be charged at a current higher than 400mA ?

the instruction didn't mention that....here are the instruction given:

# Do prevent the battery output from short circuit.
# Do use battery with specified equipment.
# Do not get into a microwave or heated place or a pressure-container or the place where generates static electricity.
# Do use the specified charger and observe charging requirement (under 1C).
# Do not connect input circuit with external power source directly.
# Do not mix other types of battery in when using.
# When the battery is in use or during charge, do not reverse connect.
# Do not disassemble or reconstruct battery.
# Do not put sharp objects together with the battery.
# Do not use or charge the battery with conspicuous damage.
# Keep the battery away from babies.
# If skin or cloth is smeared with liquid from the battery, flush with fresh water.
# Do not use a battery near fire, including the disused battery.

thanks again....

 

[Hero999]

As a general rule of thumb, Li-ion batteries should be charged at no more than 0.5C.

In this case, the instructions clearly state that it can be safely charged at 1C which is 800mA in this case to you can use the 600mA charger after all.

This is no surprise; some of the smaller and more modern Li-ion batteries can be safely charged at higher currents than 0.5C which is what you should assume in the absence of any information.

 

[FYP]

thank you...small note: the battery type is LiPo (Lithium polymer) not Li-ion

 

[Hero999]

Lithium Polymer is just a variation on Lithium ion their chemistries and charging regimes are identical.

To be picky, according to Wikipedia, your battery is not a lithium polymer but a lithium-ion polymer because a lithium polymer cells need only work when heated above 50