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What ‘AMP’ RATE SHOULD USE FOR THE LIPO BATTERY

What ‘AMP’ RATE SHOULD USE FOR THE LIPO BATTERY

A LiPo Battery or more correctly lithium-ion polymer battery(abbreviated variously as LiPo, LIP, Li-poly and others), is a rechargeable battery of lithium-ion technology in a pouch format. It’s widely used in Radio controlled equipment ,Personal electronics,Electric vehicles,etc.

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Just as with other kinds of lithium-ion cells, the voltage of a LiPo cell depends on its chemistry and varies from about 2.7-3.0 V (discharged) to about 4.20-4.35 V (fully charged), for cells based on lithium-metal-oxides (such as LiCoO2), and around 1.8-2.0 V (discharged) to 3.6-3.8 V (charged) for those based on lithium-iron-phosphate (LiFePO4).

The exact voltage ratings should be specified in product data sheets, with the understanding that the cells should be protected by an electronic circuit that won't allow them to overcharge nor over-discharge under use.

For gens ace 2s LiPo battery packs with cells connected in series, a specialised charger may monitor the charge on a per-cell basis so that all cells are brought to the same state of charge (SOC).

If you’re not familar with LiPo batteries, or have just purchased a new charger, you maybe don’t know how to safely set up the charge rate for your battery. Though the battery supplier will show you what the maximum “Charge Rate” of the battery is. But this information is different from the “C-Rating” which is usually displayed as a number on the front of the pack (30C, 75C, etc).


If you are unsure of what your batteries charge rate is , it would be safe to charge the battery pack at a 1C rate. To determine this number, take the mAh rating of your pack and divide it by 1000.

Here as belowing are some expamples:
Example 1: If your battery is 3300mAh your 1C charge rate is 3.3A. (3300/1000=3.3)
Example 2: If your battery is a 7000mAh pack, your 1C charge rate is 7A. (7000/1000=7)
Example 3: If your battery is a 250mAh pack, your 1C rate would be 0.3. (250/1000=0.25 it’s okay to round up)

And if your lipo battery 5000mah allow for a higher charge rate (Usually the general range is 1C-5C) simply take the numbers you came to calculating your 1C rate and multiply it by that factor. We can use the above 3 examples.

Example 1:

The first example was a 3300mAh battery pack, which gives us a 3.3A charge rate at 1C. And a 2C charge rate form a 6.6A, a 3C charge rate would be 9.9A and a 5C charge rate would be 16.5A.

Example 2:

7000mAh 1C charge rate = 7A
2C charge rate= 14A
3C charge rate= 21A
5C charge rate= 35A

Now you should be confident when you need to decide the “AMP” rate when charging your LiPo batteries. Always double check that your voltage is same with the one listed on your battery label.