Pichondria Forum - Recent Posts

RE: Help regarding creating a battery pack for the Raspberry Pi 5 and powering it using the pichondria board.

John — Sat, 24 Jan 2026 05:04:59 +0000

It is advertised as USB-PD compatible with Pass through. Seems good. And it should work well.

The only recommendation is that the power-bank should be USB-PD compatible, with at least 30W power. This is to ensure that 5V 5A is possible.

Take a look at https://pichondria.com/2024/08/06/power-rpi5-using-powerbank/

RE: Help regarding creating a battery pack for the Raspberry Pi 5 and powering it using the pichondria board.

sushantniraula01 — Tue, 20 Jan 2026 13:13:01 +0000

@jomon003
Can I use this power bank instead. ?? I guess creating the battery pack is too much for now. And a power bank would be easy to use for me. Is it safe and good to use? Or do you have any specific recommendations for me to use.
https://www.amazon.in/URBN-20000mAh-Charging-Compatible-Pass-Through/dp/B0F4RB36ZW/ref=sr_1_5?dib=eyJ2IjoiMSJ9.s1lJNvJvcI2sEjsA4L4xVMwjF6T656S8DAWeUA2m-WaHTq5wC3qkpbxiJ55G_O5ZmDsCL4wKzUBpY0kVYwLo91shiyYMiypsfWs0vFN9v8DiX6-ZqLmDyNWgvo5dLDvBr3cJCRw3PSf_OKZMKsFFK-Eoooz-zBuIG0hMawh5OS3hIvzCjUUlA2mJhJdYYHeAy0ZMrsCKtwnb7-vUa9qXVmPYIRSwjfOc_hwsjvzx_A4.8vCFKj0a2quHcTklJdtcZSGRQkJxHAkno0EHCnnaI-U&dib_tag=se&keywords=35%2Bwatt%2Bpower%2Bbank&qid=1768914673&sr=8-5&th=1

Answer to: Help regarding creating a battery pack for the Raspberry Pi 5 and powering it using the pichondria board.

John — Sun, 18 Jan 2026 05:09:17 +0000

1. Use a 3S or 4S Li-Po pack. These will have enough voltage which can be connected or soldered at the input of the 5V 5A board. The mAh depends on how long you want the device to run. Higher mAh = more runtime.
We cannot predict runtime on your device as we are not sure about the power consumption you have.

2. A normal easy set up would be, a charger that is connected to the battery pack (which will charge the li-ion battery). The pack will have a BMS, which will be good enough for 30W of current. For example, if you are choosing 3S, the minimum voltage of the battery pack will normally be 3x2.5V = 7.5V (2.5V minimum is taken for reference and could vary by battery packs). For 7.5V minimum voltage, we will need at least 30W/7.5V = 4A discharge BMS or higher.

3. The C rate of the battery pack determines how much current can you take out wrt the capacity. For example, with 10C discharge rate battery pack that is rated 1000mAh, you will be able to take out 1000 x 10 = 10,000mA or 10A of current. Higher C rate batteries are high discharge batteries. They are good, but might not matter to go above a limit as it will not have an impact on the performance or working.

Please let me know if you need further clarifications. If you can post URLs of the products that you are looking at (especially the battery pack), we would help you with it as well.

RE: Help regarding creating a battery pack for the Raspberry Pi 5 and powering it using the pichondria board.

sushantniraula01 — Sat, 17 Jan 2026 14:05:12 +0000

Or Is it possible to use a Lipo of 2200 mah of 30C. Or is it a overkill ?

Help regarding creating a battery pack for the Raspberry Pi 5 and powering it using the pichondria board.

sushantniraula01 — Fri, 16 Jan 2026 15:00:37 +0000

I’m currently using a Pichondria 5V 5A converter, and it works well with my 33W Xiaomi USB charger.

Now I need to run my Raspberry Pi 5 outdoors in the field for my Autonomous Farming Rover project, so I need a reliable battery pack.

I want to build a Li-ion battery pack because it gives the best value for money. My plan is to use:

a proper BMS
a safe charger/adapter
and a stable 5V high-current output for the Raspberry Pi 5 using the pichondria board.

But I’m still learning hardware, and I don’t want to risk damaging the Pi. I also live in Nepal, so I need a solution that is safe, practical, and not easy to mess up.

Can you guide me step-by-step on how to build a safe Li-ion battery pack that can power a Raspberry Pi 5 reliably?

Answer to: Solder battery recommendation

John — Fri, 05 Dec 2025 15:29:43 +0000

Thank you for being here.

The requirement when choosing batteries are mostly dependent on the BMS. Would prefer that you use a 4S battery pack. This is because, as your required power output is 25W (or near), the USB converter will take in a little more power than that from the input batteries.

The lithium ion battery packs usually have a protection voltage of 3V/cell. So, at 4S, the voltage input to the USB-PD converter will be at least 12V (when battery pack is near complete discharge), and it will draw about 2.5A at this voltage. So, you can have a BMS of 3A for 4S battery pack and it should work well in most cases. Or could use anything above 3A.

But when you opt for 2S cells, the cell pack can discharge to 6V (3V/cell) and the required BMS current draw will be around 5A. So, you will need battery packs that have BMS of 5A or higher when you use 2S cell pack.

Another major consideration is the cell quality and discharge rate. If you are using 1S2P and trying to draw this 5A from it, each cell should be able to supply 5A current. So if you are choosing a 2500mAh single cell, you will need at least 2C or higher rated cells. Higher C rate cells are usually costly. But if you opt for 4S, each cell has to supply almost half of this current (when in 1S4P configuration) and you will be able to choose from more cell options in this case. Also since the discharge rates are less in 4P, the cells usually are subject to less strain and life might improve (as they are discharged at almost half of the C rate compared to that of 2S)

Please let us know if you need any clarifications on this. Might have went a little technical. But we could break it down for you and help you with understanding if needed. Just comment and let us know and we will be happy to help.

Solder battery recommendation

Beams — Wed, 03 Dec 2025 04:43:49 +0000

Hi,

Thanks for making this product.

Still new at this, trying to power a R Pi 5 with display and NVME, presume I will need close to the 5A.

What battery do you recommend? Not a powerbank, but a battery I can solder in.

The 2S / 4S batteries with 25W+ are RC / hobby batteries, is this what people are using?

Answer to: Powering a Jetson Nano

John — Mon, 03 Nov 2025 09:00:21 +0000

@tech_user Just ensure that the voltage drop is minimal. Adding connectors usually drops voltage at each of these points of connectivity. Also get a thick wire for the cable to reduce voltage drops. That should be your only concern in this setup. It is just that most designs aren't for the 4A setup (maybe the wires and connectors aren't meant to be for 4A) . But if your current draw is minimal, it wouldn't matter.

Hope it works well in your case!

Please let us know if there are any concerns that you come across or if the setup works well for you!

RE: Powering a Jetson Nano

tech_user — Fri, 31 Oct 2025 18:58:43 +0000

@jomon003

I found a good usb-c to barrel jack cable, so it should do. Thanks

Answer to: Powering a Jetson Nano

John — Thu, 30 Oct 2025 16:25:37 +0000

It should work. The only concern would be that the you might want to connect the power directly to the pins or solder a cable with DC barrel end to connect to the board. The power supply should work well 5V/4A.