# Mounting Lipo Battery **URL:** \ **Category:** Support\ **Created:** [5 March 2022 01:55 UTC](https://forum.core-electronics.com.au/t/mounting-lipo-battery/13327 "2022-03-05T01:55:49Z")\ **Posts on this page:** 11\ **Page:** 1
**Author:** ![John136772](https://yyz2.discourse-cdn.com/flex028/user_avatar/forum.core-electronics.com.au/john136772/32/5416_2.png) [@John136772](https://forum.core-electronics.com.au/u/John136772)\ **Post date:** [5 March 2022 01:55 UTC](https://forum.core-electronics.com.au/t/mounting-lipo-battery/13327/1 "2022-03-05T01:55:50Z")
How do people mount a Lipo battery to their case, keeping in mind it might get hot? I am making a battery powered bluetooth MIDI controller. The Feather M0 Bluefruit I am using is only interfacing with an 128x64 Oled and 6 foot switches. The Oled only draws 0.08W when fully lit so I don’t think it will be a problem, but I would like to hear from anyone if you think it will be an issue. P.S. I am making it out of wood for strength and so the Bluetooth signal won’t be blocked by a metal box. ---
**Author:** ![John136772](https://yyz2.discourse-cdn.com/flex028/user_avatar/forum.core-electronics.com.au/john136772/32/5416_2.png) [@John136772](https://forum.core-electronics.com.au/u/John136772)\ **Post date:** [5 March 2022 01:56 UTC](https://forum.core-electronics.com.au/t/mounting-lipo-battery/13327/2 "2022-03-05T01:56:32Z")
![Screen Shot 2022-03-05 at 12.52.57 pm](https://canada1.discourse-cdn.com/flex028/uploads/core_electronics/original/2X/d/d19b26c7811d9adbb98723b4ada657dfb72f15ce.jpeg) ---
**Author:** ![Liam120347](https://yyz2.discourse-cdn.com/flex028/user_avatar/forum.core-electronics.com.au/liam120347/32/5003_2.png) [@Liam120347](https://forum.core-electronics.com.au/u/Liam120347)\ **Post date:** [5 March 2022 08:04 UTC](https://forum.core-electronics.com.au/t/mounting-lipo-battery/13327/3 "2022-03-05T08:04:08Z")
Hi John, I like to keep any LiPo’s stuck on my projects ready to rip off at a moment’s notice. A bif to velcro on the battery and some on the underside of the box might work here, I also like the velcro reusable zip ties if something is a bit more sensitive(i.e. LiPo’s). > **[VELCRO® Brand 25 x 200mm Multi-Coloured Reusable Ties For Cables, Wires And...](https://www.bunnings.com.au/velcro-brand-25-x-200mm-multi-coloured-reusable-ties-for-cables-wires-and-cords-5-pack_p3960018)** > > Find VELCRO® Brand 25 x 200mm Multi-Coloured Reusable Ties For Cables, Wires And Cords - 5 Pack at Bunnings. Visit your local store for the widest range of products. PS: Awesome idea making it out of wood, I’d also be weary of the antenna and protoboard having some interference, check out this post: [ESP32-Cam WiFi Interference Issues with Makerverse Protoboards](https://forum.core-electronics.com.au/t/esp32-cam-wifi-interference-issues-with-makerverse-protoboards/12735) ---
**Author:** ![John136772](https://yyz2.discourse-cdn.com/flex028/user_avatar/forum.core-electronics.com.au/john136772/32/5416_2.png) [@John136772](https://forum.core-electronics.com.au/u/John136772)\ **Post date:** [5 March 2022 09:13 UTC](https://forum.core-electronics.com.au/t/mounting-lipo-battery/13327/4 "2022-03-05T09:13:23Z")
Thanks for your feedback and links. I think I have some velcro in the garage which I could use. I was also wondering about dissipating heat from the battery. I’m thinking it wouldn’t get too hot with my usage but I am not sure. ---
**Author:** ![Liam120347](https://yyz2.discourse-cdn.com/flex028/user_avatar/forum.core-electronics.com.au/liam120347/32/5003_2.png) [@Liam120347](https://forum.core-electronics.com.au/u/Liam120347)\ **Post date:** [5 March 2022 09:36 UTC](https://forum.core-electronics.com.au/t/mounting-lipo-battery/13327/5 "2022-03-05T09:36:56Z")
Hi John, Depending on the Bluetooth setup I think the radio would be using a bit more - still the overall power usage of your system shouldn’t be too high so the heat generated inside the battery would be low. More on calculating it below: The heat that the battery generates would be equal to the current flowing through it squared multiplied by its internal resistance(same as a resistive element). Unfortunately, it isn’t as easy as putting your DMM on resistance mode and measuring it, Sparkfun has a good guide: [Measuring Internal Resistance of Batteries - learn.sparkfun.com](https://learn.sparkfun.com/tutorials/measuring-internal-resistance-of-batteries/internal-resistance) As long as the battery has a vent and some airflow it should be good - doing some real tests are often quicker than doing the maths (I think it was the [Safety Third podcast](https://www.youtube.com/channel/UC7QE72cxiBkiwnvGoFfqYOg) where they mentioned its easier jumping in and trying it instead of working it out - simulating might be worth tho/depends on the project). ---
**Author:** ![John136772](https://yyz2.discourse-cdn.com/flex028/user_avatar/forum.core-electronics.com.au/john136772/32/5416_2.png) [@John136772](https://forum.core-electronics.com.au/u/John136772)\ **Post date:** [5 March 2022 09:54 UTC](https://forum.core-electronics.com.au/t/mounting-lipo-battery/13327/6 "2022-03-05T09:54:06Z")
Thanks Liam. I appreciate your kind thoughts and help. I am a retired Physics teacher so I could have calculated a value like you suggested but I realise that there are many variables that will influence the result, like you mentioned. I guess I was hoping someone had used one in a similar situation and could let me know how it went. I like your idea of vents, so I’ll make sure there can be air flow by not joining the wood properly and leaving gaps. 😉 ---
**Author:** ![Liam120347](https://yyz2.discourse-cdn.com/flex028/user_avatar/forum.core-electronics.com.au/liam120347/32/5003_2.png) [@Liam120347](https://forum.core-electronics.com.au/u/Liam120347)\ **Post date:** [5 March 2022 09:56 UTC](https://forum.core-electronics.com.au/t/mounting-lipo-battery/13327/7 "2022-03-05T09:56:36Z")
No worries John! I’ll be honest I had a little giggle about your solution, I have a feeling that will creep into my vocab ahaha ---
**Author:** ![John136772](https://yyz2.discourse-cdn.com/flex028/user_avatar/forum.core-electronics.com.au/john136772/32/5416_2.png) [@John136772](https://forum.core-electronics.com.au/u/John136772)\ **Post date:** [5 March 2022 10:07 UTC](https://forum.core-electronics.com.au/t/mounting-lipo-battery/13327/8 "2022-03-05T10:07:58Z")
Also, all my builds are prototypes… ---
**Author:** ![John136772](https://yyz2.discourse-cdn.com/flex028/user_avatar/forum.core-electronics.com.au/john136772/32/5416_2.png) [@John136772](https://forum.core-electronics.com.au/u/John136772)\ **Post date:** [19 March 2022 05:05 UTC](https://forum.core-electronics.com.au/t/mounting-lipo-battery/13327/9 "2022-03-19T05:05:33Z")
Just reporting that the build worked and I am happy I now have a battery powered foot switch that sends MIDI CC commands to my iPad and so I can turn things on and off with my feet while playing guitar. The wood feels strong and able to be stood on and lets the bluetooth signal through. ![IMG_2033](https://canada1.discourse-cdn.com/flex028/uploads/core_electronics/original/2X/f/fe69e5d1af54a632f0af1ed48f7d1cd800414e45.jpeg) Here’s the innards… ![IMG_1996](https://canada1.discourse-cdn.com/flex028/uploads/core_electronics/original/2X/2/28e4d74a7cffb135625a83723bb14d6642b26f4b.jpeg) ---
**Author:** ![Liam120347](https://yyz2.discourse-cdn.com/flex028/user_avatar/forum.core-electronics.com.au/liam120347/32/5003_2.png) [@Liam120347](https://forum.core-electronics.com.au/u/Liam120347)\ **Post date:** [19 March 2022 05:34 UTC](https://forum.core-electronics.com.au/t/mounting-lipo-battery/13327/10 "2022-03-19T05:34:28Z")
Hey John, Looks great! I’m pleasantly supprised the Bluetooth gets through the Protoboard. I’m keen to see it in action!! ---
**Author:** ![John136772](https://yyz2.discourse-cdn.com/flex028/user_avatar/forum.core-electronics.com.au/john136772/32/5416_2.png) [@John136772](https://forum.core-electronics.com.au/u/John136772)\ **Post date:** [19 March 2022 10:47 UTC](https://forum.core-electronics.com.au/t/mounting-lipo-battery/13327/11 "2022-03-19T10:47:43Z")
Thanks. The blue tooth signal makes it through several walls in my house so it won’t be a problem as the pedal will be within metres of my iPad when I use it.