# What Does The C Mean On A LiPo Battery?

## What is the C in a LiPo battery?

What’s LiPo Battery C Rating C Rating is an indicator of the continuous and burst discharge rate of a LiPo battery.

It allows users to easily calculate the maximum current you can draw from the LiPo safely without damaging the battery..

## What is C value of a battery?

A C-rate is a measure of the rate at which a battery is discharged relative to its maximum capacity. A 1C rate means that the discharge current will discharge the entire battery in 1 hour. For a battery with a capacity of 100 Amp-hrs, this equates to a discharge current of 100 Amps.

## What does 10c mean on battery?

10C = 10 amp rated. 20C = 20 amp rated. 30C = 30 amp rated. Wont affect run time but will run cooller if it is run in a device using a certain amount of amp draw.

## Can a dead lithium battery explode?

Most lithium-ion battery fires and explosions come down to a problem of short circuiting. … Batteries left too close to a heat source—or caught in a fire—have been known to explode. Other external factor can cause a lithium-ion battery to fail, too.

## What does the 25c mean on a LiPo battery?

A LiPo battery consists of multipe cells. … A 4S LiPo would therefore supply 14.8V. Apart from the cells, a discharge rate is defined by the letter ‘C’. Most batteries cases say something like “25C to 40C” discharge rate. This means that 25C is the nominal discharge rate and 40C is the maximum burst discharge rate.

## What does 50c mean on a LiPo battery?

50C = 50 x Capacity (in Amps) Calculating the C-Rating of our example battery: 50 x 5 = 250A. The resulting number is the maximum sustained load you can safely put on the battery. Going higher than that will result in, at best, the degradation of the battery at a faster than normal pace.

## What is the difference between a 25c and 35c LiPo?

The 25C batteries will only be able to supply ~70% of the current as the original 35C. This means less power available and also less time before voltage sag is to great to fly. It has nothing to do with capacity but even still, expect reduced effective flight times.

## What’s the difference between 20c and 30c LiPo?

Whats the difference between a 20c and a 30c battery? How does this effect my motor? The higher the C rating, the higher the cells are capable of discharging. For example, a 20C 2100 mah lipo can discharge at 42 amps (cell count does not matter), and a 30c 2100 mah can discharge at 63 amps.

## What is C rating of lithium ion battery?

1 C is defined as the power that would, over an hour, deliver the complete capacity of a battery. For an 85 kWh battery, 1 C is 85 kW. Note that this does not mean that the battery can be fully charged or discharged at this constant power. It just a ratio of the instantaneous power relative to the battery’s capacity.

## Who makes the best LiPo RC batteries?

The Gens ace is amongst top ranking RC battery manufacturers. This is why the Gen ace 7.4V is one of the best lipo batteries that you can opt for. These batteries are known for superior technology as well as better flexibility in terms of multi-purpose use.

## How do I know if my LiPo battery is bad?

Dented corners. Puffing or swelling shows that the battery is damaged, and therefore you should discontinue discharging or charging immediately. Further, swollen cells have a higher IR; thus, you should stop using the entire pack immediately. Damaged LiPo batteries get puffy, and releases smoke when charging.

## What does 15c mean on a LiPo battery?

If you take the battery’s mAh capacity (doesn’t matter how many cells it has), multiply it by its C rating, and divide it by 1,000, you get the maximum number of amps the battery should be able to comfortably deliver. So, for your 130mAh 15C batteries the maximum amps is (130 x 15 / 1000) = 1.95 amps.

## How many years does a LiPo battery last?

LiPo Battery Life Span As you use your battery, charging and discharging it, the capacity of it will slowly drop. So if your battery is 1300 mAh out of the box, it might drop to 75% of that (about 1000 mAh) after 200 charge/discharge cycles. A LiPo may last 300 to 500 cycles, depending on how it is cared for.

## What is the lifespan of a LiPo battery?

The Average Lifespan of a LiPo Battery – Discharge Cycles If you are lucky enough not to break your LiPo battery before its end of days, it should have an average lifespan of about 400–500 cycles.

## Can a LiPo battery kill you?

Not likely. Even though the battery can provide a lot of current, the high impedance of dry skin will limit the current passing through the body if both leads are touching. … If you built a 10mA ideal current source and touched both terminals, it would probably be lethal.

## What C rating LiPo do I need?

A C rating is a value given to the LiPo battery pack that refers to the maximum discharge rate of the LiPo. Examples of C ratings could be anything between 30C to 65C. Numbers outside of this range are possible as well. LiPo’s typically have the C rating marked right on the front of the LiPo pack.

## Why do LiPo batteries explode?

So why do LiPos explode? It’s actually pretty simple – the Lithium ions inside a LiPo do not like to be exposed to air. All LiPo explosions occur for one reason: one or all of the cells in the pack get punctured or ruptured somehow, exposing their innards to the air.

## Can you charge LiPo with just balance lead?

Charging via a balance lead is fine. I have a couple of lipos charging this way as we speak. Only issue with charging in situ is if the cell puffs (can’t get it out) or bursts into flames….

## What is 1c battery?

The capacity of a battery is commonly rated at 1C, meaning that a fully charged battery rated at 1Ah should provide 1A for one hour. … A C-rate of 1C is also known as a one-hour discharge; 0.5C or C/2 is a two-hour discharge and 0.2C or C/5 is a 5-hour discharge.

## Can you revive a dead LiPo battery?

Connect the main plug of your LiPo battery to your NiMH charger and start charging at the lowest current possible. … This will take longer than charging at 1C but is safer. Once the balance charge has completed balancing you should have a fully recovered LiPo battery.

## Is it OK to leave a LiPo battery charge overnight?

Never leave your LiPo batteries sitting around on a full charge for more than 2-3 days. If by the 3rd day you realize you are not going to use your battery today, you need to discharge your battery down to 3.6v-3.8v per cell for safe storage until you are ready to use the battery again.