Question about LiPo specs

Hardware
1

Hello, I am thinking about buying a second LiPo for my electron. My plan was to buy one with more maH than the one which comes with the electron kit(which has 2000maH). But I came accross some parameters for the LiPo which I don´t know how to choose:

  1. What does Charge/Discharge current of the LiPo mean? Whats the Charge/Discharge current from the LiPo of the electron kit ? And which one should I choose if I buy a LiPo with for example 10000 maH or 20000maH ?
  2. What does NTC mean ?
  3. What is the name of the connector i need to for the electron ?

I guess you can see from my questions thats its the first time for me I get in touch with LiPos. But I would be really happy if you can help me here :wink:

2

When you say;

If you mean whats is the name of the connector that connects lipo batteries, then it’s called a JST connector.

1 Like
3

Negative Temperature Coefficient.
There’s some more info here regarding the use of thermistors with a NTC with batteries: http://www.semitec-usa.com/application/battery1.html

1 Like
4

Oops :joy:

5

Thank you @JackD12,@Moors7 Question 2 and 3 are now clear to me!

The only thing that stays totaly unclear to me is the charge/dischrage current of a LiPo :open_mouth:

6

Well don’t take my word for this(I’m not an expert, I’m 12 :joy:, but don’t worry I do this stuff all the time) but on the battery when it says 2500mah, I’m pretty sure it means that the discharge is 2500 milliamps per hour. That, I’m pretty sure would apply to all li-po batteries as well.

-Good luck,
Jack

7

The charge/discharge current is the maximum amount of current recommended for that particular battery. Some LiPo batteries are OK with high discharge currents, and some have much lower recommended discharge currents.

For the Electron what you want is for the battery to be able to 2 amps of current which is the max the Electron will consume when transmitting sometimes.

Ideally, you also want a battery with a PCM Protection circuit attached to cut the power output from the battery off if there is ever a short circuit, or under/over voltage conditions to prevent the battery from damage.

8

Nope, that’s not the case.
The 2500mAh rating states the capacity of the battery and this doesn’t have anything to do with the max. discharge current.
It only states how much energy is stored in the battery.
If you had a constant load that drew 2500mA you could drive that load for one hour, but if you had a load that drew 5000mA you’d only get half an hour out of it and with a 1250mA load two hours.

It’s the same as the size of your cars tank does not directly limit the cars top speed :wink:

9

Boy I never would’ve guessed that😂