UPS for raspberry pi 4

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Hi all, can someone please tell me if this battery is compatible with the Witty UPS for the raspberry pi 4?:

Battery:
https://core-electronics.com.au/polymer-lithium-ion-battery-2400mah.html

Polymer Lithium Ion Battery (LiPo) 3.7V 2400mAh

Witty:

https://core-electronics.com.au/witty-pi-4-l3v7-rtc-power-management-for-raspberry-pi.html

Also please let me know that battery would require any soldering or if I can just connect it to the Witty via cable.

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Hey @Roman301249,

The Witty Pi 4 L3V7 connects to its backup battery via a 2-pin JST-PH (PH2.0) connector, as shown in the image below:

image
image658×353 41.3 KB

The battery you linked is a 3.7 V LiPo with a 2-pin JST-PH connector, so it should be physically compatible and can be plugged in directly, no soldering required.

As noted on the product page for the Witty be sure to watch out for battery polarity - connecting non-Adafruit batteries with the wrong polarity can instantly destroy your Witty Pi and possibly the Raspberry Pi beneath.

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Great, thank you Ryan. I’ll make sure to check the polarity before connecting the Battery.

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I remember something a few years ago where a particular battery manufacturer had the wire swapped on the JST. If you just plugged it in, +ve and -ve were the wrong way around.
Suggest using a multimeter to verify the actual voltage on the JST pins and compare with what is needed by the Witty.
Cheers
Jim

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Thanks James, I’ll do that

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Yes, the battery is compatible—Witty Pi supports 3.7 V LiPo batteries, and your battery fits the connector type exactly. No soldering required. It’s a simple plug-in connection.