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5 years, 9 months ago.
LiPo battery for MAx32630fthr
Hi all,
What would be the best spec choosing a lipo battery for Max32630fthr?
Many thanks
1 Answer
5 years, 9 months ago.
Hi Webclixer,
The spec of the lipo battery will be determine by your application. The only thing you need to make is that you got the correct voltage for the board, which maximum should be 3.3V. The current and the battery capacity is going to be depended on yours needs and your application design. So if your design require more current, you will need a battery that will be able to output 1.5 times your device current usage. The 1.5 is just a safety standard. You can, of course, go higher if you want to but you will need to but a fuse just to protect your device from drawing more current then you want. Here is a guide for your reference: https://rogershobbycenter.com/lipoguide/
Please let me know if you have any questions!
- Peter, team Mbed
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Many thanks for the answer, Peter.
I am using Max32630 built in ble and acelerometer. I can only find one type of Lipo battery where I live and that is Lithium Polymer 3.7V 800mAh 25C 1-Cell LiPo Rechargeable Battery w/ JST Connector. Will this battery work for the mentioned board or I must stick to 3.3v Lipo?
posted by 24 Jul 2018Hi Webclixer,
That will work just fine. Just make sure that you put a fuse because the maximum current discharge for this battery is 20A, which is a lot higher than the board able to handle. As for the voltage, you just need to stay within plus 1V. Don't go too high or you will risk frying your board.
- Peter, team Mbed
posted by 24 Jul 2018Thank you again, Peter. i understand now where the 20A is coming from. But when you say " you just need to stay within plus 1V. Don't go too high ", does this mean i have to include code onto the board to control the voltage level?
posted by 25 Jul 2018Hi Webclixer,
So every micro controller have a voltage regulator which convert and regulate high voltage to 3.3V. So in theory you can use a battery up to 7.4 voltage and the board would still work. The reason why I said that you need to stay within plus 1V is because converting very high voltage to lower voltage will generate a lot of heat, which could fry your board. That why I recommend you go as high as 4.3V.
-Peter, Team Mbed
posted by 25 Jul 2018
Hi Webclixer,
So every micro controller have a voltage regulator which convert and regulate high voltage to 3.3V. So in theory you can use a battery up to 7.4 voltage and the board would still work. The reason why I said that you need to stay within plus 1V is because converting very high voltage to lower voltage will generate a lot of heat, which could fry your board. That why I recommend you go as high as 4.3V.
-Peter, Team Mbed
posted by Peter Nguyen 25 Jul 2018