What you need to know about lipo batteries

What You Need To Know About LiPo Batteries LiPo's, or even more properly Lithium Polymer, batteries are the most typical way today of powering electric RC models. Planes and helicopters are greatest beneficiaries of the introduction of LiPo batteries since they're very lightweight when compared to quantity of energy they are able to store. They likewise have high discharge rates when compared with conventional rechargeable batteries (NiCad or Ni-mh) enabling these to supply the huge bursts of power needed by high end motors utilized in extreme flight manoeuvres. It's the innovation from the LiPo rechargeable battery which has enabled electrical power to get very popular for RC helicopters, introduced the price lower and opened up the wonders of flying RC helis to some much wider audience who'd never otherwise have joined the hobby.

For those their advantages there's a couple of disadvantages in LiPo's namely their relatively high cost, although getting a lifespan that's quite limited. You have to take care of them correctly if you are planning to obtain even 300 - 400 cycles from them. To do this you'll need a little understanding regarding how to take care of them (see article through the same author 'How To look after LiPo Batteries' - see link at bottom from the page).

There's a diploma of hazard associated with LiPo's, the volatile electrolytes happen to be recognized to catch fire. This isn't something which I'd overplay but it's something you need to be familiar with and ought to always be stored in your mind. ( lipo battery pack ) There's a couple of figures on LiPo batteries you need to particularly consider, which determine its rating and appropriateness for the particular model. The primary ones would

be the batteries current (V), its capacity (mAh) and it is discharge rate or 'C' rating.

So, towards the to begin these - current. LiPo battery power are made from cells each having a current of three.7v. Individuals utilized in rc helicopters, planes and so forth will usually be 1 to six cells all of 3.7v. LiPo's will usually condition the amount of cells (S) but don't always show the current. So a 1S pack is going to be 3.7v, a 2S pack is 7.4v along with a 3S pack 11.1v, right the way in which up to and including 6S pack at 22.2v. Exactly why is 'S' accustomed to represent the amount of Cells? Well it's the quantity of cells in Series and 'C' can be used to represent the release rate. Ok, 'C' for Discharge rate! Is sensible! Well really there's sense inside it because the discharge rates are an issue from the Capacity from the cell. This can all become clearer later.

If there are a variety of cells in Parallel this is given a 'P' number, but apart from large capacity LiPo's packs are often 1P. So you may see "4S 2P" written on the LiPo, indicating there are 2 plenty of 3 cells in series connected in parallel.

The key factor though with current is just to actually possess the correct current LiPo's for the particular model. This is based on the motor and speed controller mixture of the model. You just follow that. Therefore if it states you'll need an 11.1v 3S LiPo you receive exactly that for the model. The capability and discharge rate from the LiPo's can be simply varied however the current should be right.

That then leads nicely on to cope with LiPo capacity. Normally, this is succumbed mAh (milliamp hrs). This quantifies the number of milliamps you can drain from this in a constant rate to have an hour to be able to fully discharge those. Thus should you could operate a LiPo at 2200mA to have an hour its capacity could be 2200mAh also it might have two times the capability of the LiPo

that may run at just 1000mA to have an hour to be able to completely drain it from fully billed. It is just like how big the gas tank inside your vehicle. Clearly the bigger the capability of the gas tank, or LiPo battery, the more you are able to run for. With rc models, especially RC helicopters and planes, the restricting factor may be the weight and dimensions from the battery power.

A bigger capacity pack could give you longer flight occasions when you are heavier it'll adversely affect performance.

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