I built an ADVANCED Battery Bank (Open Source)

Comments · 360

• BE

  @benmakeseverything · 3 months ago (edited) · pinned

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• BE

  @benjaminbuljevic7977 · 2 months ago

  we do the things we do<br>not because it is easy<br>but because we thought it was going to be easy

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• RO

  @RoamingAdhocrat · 3 months ago

  I <i>love</i> those 7x5 LED matrix displays<br><br>when I got started with Arduinos in 2010 or so, I had a project in mind using that kind of display, and bought a couple off ebay. didn&apos;t look too closely and it turned out to be a parallel-interface kind there were no libraries for... so I took the datasheet and painstakingly made my own. was SO satisfying when I got far enough I could successfully trigger the test pattern!

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• IN

  @Inventionura · 3 months ago

  I love building power supplies, and this one is an absolute beast! In my opinion, this is the best power supply project on YouTube.

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• HA

  @hamzaterzi8801 · 2 months ago

  <a href="https://www.youtube.com/watch?v=i2HRpcJS6Vk&amp;t=848">14:08</a> I recommend adding ESD protection as described in the &quot;Filtering and Input Considerations&quot; section on page 14 of the INA226 datasheet. Your video gave me some ideas. Thank you.

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• TE

  @teotwawki_je · 2 months ago

  A serial port for control &amp; perhaps reporting would be very nice.

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• MA

  @markatherton7848 · 2 months ago

  Excellent project; well done. Might be worth investigating how to reduce IQ for the unit; 5mA is a bit on the high side. I built a replacement CPU for a 1W flashlamp using an ATmega328P and got IQ to 120nA. The push button caused an interrupt that caused the CPU to wake up. My perception for a target sleeping current for a unit like yours is around 5uA. Keep up the good work. Mark, New Zealand.

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• RO

  @rolfvanrijckevorsel · 2 months ago

  Awesome project! I really like the aesthetic of this thing. However, there is one major safety concern with your design. When using a multi-series battery pack, you should always have a cell balancing circuit. Over time, the voltages of the battery cells can drift apart, which can lead to overcharging of the battery cells. This is a huge safety concern since overcharging could lead to thermal runaway. This is why it is always recommended to use a BMS with cell balancing, or have a charger that supports cell balancing.

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• SP

  @sp-vt4je · 2 months ago

  It probably needs some refinement in terms of the electronics but that LED matrix display does look cool, and the case. Kudos for open-sourcing it.

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• NO

  @nowhyareyouputtingmynamehere · 2 months ago

  I don&apos;t know why, but the power bank powering the sliding motor it was sitting on made me laugh.

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• DF

  @dfgdfg_ · 1 day ago

  Beautiful design, inside and out 🌟

• ДИ

  @ДиланДайберг · 2 months ago

  отличный проект, удачи в будущих изобретениях

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