Tuesday, October 17, 2017
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# The Lipo Battery Explained

When you bought a lipo battery, you must see some Parameters on the battery, for example ,you bought a Tattu 3s lipo battery, you can see “3s 1300mAh 11.1V 25C 3S1P Lipo Battery”, do know what’s the meaning of this parameters ? When you read this article, you will know about it .

1) Voltage

Voltage of a battery is decided by how many cells are in a single battery.

There can be anywhere from 1S all the way to 7S.

For Lipo batteries a single cell in a battery is considered 3.7 Volts.

This means that a 2 cell (2S most commonly labeled on a battery) is 7.4 Volts and a

3S (3 cell battery) is 11.1 Volts.

The higher the voltage the more Power you get.

2) MAH (Milli-Amp Hour)

This is the capacity of the battery, almost in comparision to the fuel tank in a car.

It determines the amount of run time you will receive from a battery.

1300 MAH battery will give you more run time than a 1000 MAH battery.

This being said the 1300 MAH battery will be quite a bit heavier than the

1000 MAH. If you purchase to large of a battery you may have trouble fitting the

battery into the vehicle itself as the physical size of the battery may be too large.

3) C ratings

Here we have two different rating a charge rating (usually between 1C and 5C)

and discharge ratings (25C – 70C).

To explain further:

1C is basically 1*(MAH/1000).

So if we have a 1300 MAH battery, 1300/1000 = 5, then 1*1.3 = 1.3 Amps.

This means that 1C is 1.3 amps.

Charging – Charging is always safe to charge any battery at 1C.

So for a 1.3 MAH battery charge at 1.3 amps, or for a 2700 MAH battery charge

at 2.7 amps. Any charge rate greater than this could potentially wreck a battery so be cautious.

here is a table for charge rates:

C rating MAH Charge Rate

1 50000 5 Amps

2 50000 10 Amps

3 50000 15 Amps

4 50000 20 Amps

5 50000 25 Amps

The higher the charge rate the quicker the charge, so at 1C a battery will take 1 hour,

at 2C the battery will take 30 mins,

at 3 C the batetry will take 20 minutes to charge so on and so forth.

So if charging 2 5000 MAH batteries and the Tattu charger at 4 amps will approximately take

1 hour and 15 minutes to charge both batteries.

If only charging 1 5000 MAH battery at 8 Amps then it would take approximately 40 mins to charge.

Discharge Rate – this is how much umpf a battery can supply,

theoritically a 65C 5000MAH battery can discharge 325 amps safely when fully charged,

and a 25C 5000MAH battery can discharge no more than 125 amps safely however

that is not why this number matters.