Librem 5 battery

General Feedback
23

The Librem 5 battery is likely to conform to a standard form factor.

It’s a custom enclosure designed by Purism, see the battery’s CAD files.

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24

I’ve used package forwarder service to get replacement laptop battery shipped to Poland. Pursim shipped battery to their US warehouse and then they to me. The downside was additional $35 for shipping, the upside - I got the replacement battery :slight_smile:

Somewhat advertising-ish details hidden here

The service in question was forward2me.com. They work fast. If you chose this route, e-mail their support first to confirm they can deliver to your location.

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25

I know shipping batteries can be very problematic to many destinations. I was wondering if there could be a battery supplier that could provide batteries to Librem5 customers in various countries that conform to the physical requirements of the battery pack.

Also, I wish there was some way to clip an auxiliary battery on the back of the phone that would allow connect to the USB-C plug on the phone. Maybe one could be designed in the future.

Or, maybe another iteration of the Librem 5 model with a bigger battery pack as part of the back cover?

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26

Related update for standalone international battery shipment: Can't buy a new battery? - #17 by JCS

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27

Hello, so… Has anyone tried?

RUIXI Batterie pour Purism Librem 5 Linux Phone 4500mAh 3.8V

or this one
https://fr.aliexpress.com/item/1005005249551170.html?fs=true

I just sent an email to https://www.floss-shop.de/ also to find out if they have any

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28

As to this seller on AliExpress, I had a bad experience with them. Bought 2, but both batteries won’t charge. Stuck at 2.5 V. Now have to send them back (that is, if I can find a printer to print the return label :unamused:).

Re: floss-shop.de, isn’t this exactly what we’re looking for? Ersatz Akku Librem 5 Smartphone | FLOSS Shop DE Because they give the impression they are in stock, I’ve ordered 2, I will report back once I receive them. (Isn’t that site run by Nicole Faeber, who was at one point Purism CTO?)

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29

Ok thank you for the return on aliexpress ! Actually they put them online on floss-shop.de after my request by mail, I also ordered 2! We’ll see what happens, normally they are official batteries.

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30

Seeing the affiliation Nicole has with Purism, I expect and hope so!

Thanks for that! I was getting pretty desperate to get a new battery, so let’s hope we’re not disappointed.

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31

Periodic reminder:

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32

The batteries from floss-shop.de just came in. They look new (no dents, contacts look unused and no other usage marks). Voltage is 3.8V as needed and they came charged to 60% :sunglasses:

Next up: figuring out how to measure the current capacity vs the max factory capacity.

But it looks like this is the real deal :+1:

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33

@lakei

Thanks for keeping us updated on this.
After ordering one myself, I was most disappointed to find that they cannot ship these beyond the EU, of which the UK is no longer a part.

I was interested to note that they are also offering actual Librem 5 phones, but preloaded with Mobian for some reason.

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34

I’m sorry to hear it, that sucks :frowning:

Weird indeed. Do they consider Mobian a better alternative (newer packages) or are they not allowed to ship PureOS, I wonder.

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35

Maybe you can find someone (e.g. me) who lives in Germany and then sends it to the UK. It’s a bit complicated as one need to fill in some customs document. As well as sending lithium-ion batteries via DHL to the UK is prohibited: page 182 on DHLs prohibited articles list.

I ordered a battery, but now they seem to be out of stock:

L5 batteries now already out of stock a FLOSS Shop
L5 batteries now already out of stock a FLOSS Shop2176×680 60.1 KB

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36 
ls /sys/class/power_supply/max170xx_battery/
capacity             device      temp               voltage_max
charge_counter       health      temp_alert_max     voltage_max_design
charge_full          hwmon5      temp_alert_min     voltage_min
charge_full_design   power       temp_max           voltage_min_design
charge_now           present     temp_min           voltage_now
charge_term_current  scope       time_to_empty_now  voltage_ocv
current_avg          status      type               wakeup10
current_now          subsystem   uevent
cycle_count          technology  voltage_avg

purism@pureos:~$ cat /sys/class/power_supply/max170xx_battery/charge_full   
4199160
purism@pureos:~$ cat /sys/class/power_supply/max170xx_battery/charge_full_design 
4199160
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37

Thanks. I suppose that is what upower -d is also using? How accurate is this? How does Linux know what the current capacity of a battery is without first fully charging the battery and then fully draining it?

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38

I didn’t know about upower, that is probably a better way to go for humans.

I don’t know details of any of this, but I would guess that, subject to “calibration”, accuracy is similar to automobile fuel gauges and odometers.

The battery has an IC with various design parameters, current status and measurements. The device (phone) has a Power Management IC and the OS has a device driver for the PMIC. The PMIC measures current flowing into and out of the battery and keeps a running total. Of course there are measurement errors and accumulated quantization and round off errors. The full drain followed by full charge is part of the calibration process since the PMIC knowledge of current % charge degrades over time because of accumulated errors (where the automobile analogy breaks down, since periodic recalibration is not required).

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39

Indeed, the www.floss-shop.de is out of stock.
Did someone test the ali express librem 5 battery ?

mechanical test + capacity test on a bench… Any feedback appreciated !

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40
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41

My battery from http://www.floss-shop.de/ arrived fine and it works perfectly fine. I m glad we have an option now for librem 5 batteries

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42

Could you take a picture of your battery?

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