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The Flipper Zero is a versatile multi-tool device designed for hacking, debugging, and experimenting with various electronic gadgets and systems, such as sensors, receivers, and other electronic components.

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Where Can I buy a replacement battery?

Where can I buy a replacement battery for the Flipper Zero device ?

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Hey there, what device are you looking to replace the battery for? Is it a laptop, a phone, a tablet? If you're having trouble trying to finding the specific model consider trying to upload some photos of the device. Adding images to an existing question

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Hey Jacob. I originally asked this question on the how to change your battery on your Flipper Zero post. Looking for a replacement batter for the Flipper Zero device. Thank you.

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Welp @marvinwessels, you must be better at searches on AliExpress than I am, because I'm not having any luck locating a suitable replacement there.

What I can tell you, @traviscoles, is the battery is a fairly standard Lithium Ion. The numbers on the front of the battery, 753665 3.7V 2100mah, give you the physical dimensions, voltage and current rating of the battery. So you're looking for one that 75mm long, 36mm wide and 6.5mm thick. It's a standard Li-Ion voltage of 3.7V, and puts out 2100 mAh of power. So technically you can use any Li-Ion battery that has those dimensions or smaller. Since there is a direct correlation between battery size and power capacity, going with a smaller battery will reduce the available power. Oh, and you want to make sure you get one with three wires and a plug, although if you're handy with a soldering iron you could replace the plug yourself, but you do want to make sure you get one with three wires.

I actually located two suppliers where you could get the exact correct battery, but unfortunately there's a $150 shipping fee and a minimum order of 1,000 pieces, so I suspect that's not going to appeal to you. Sticking with it, though, I finally found a seller on Alibaba.com where you can actually buy just one of the batteries you're looking for.

Lithium-ion Cell Supplier Customized Keyboard Battery 753665 3.7v 2370mah Rechargeable Pure Cobalt Battery - Buy 3.7v Battery Bluetooth Headphone Battery,Nmc 3.7v 234ah Battery Cell,3.7v Lithium Ion Battery 153 Ah Product on Alibaba.com

Interesting thing is that it's the exact same size but rated at 270 more mAh of capacity.

Hope that does it for you; that seems to be about all I can come up with.

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@kuromifanboi Unfortunately it looks like the battery you've located only has a two wire interface where the Flipper Zero battery has three. I'm not 100% sure what the third wire is, but my best guess would be that it's for a temperature sensor to cut off the charging when it gets warm. I don't know how well or even if a two wire battery will work in a circuit designed for a three wire battery.

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@dadibrokeit Took a second look at the battery and cable. I couldn't find anything about that specific battery, but yes it is most likely a Thermo wire that checks the temperature during charging. Batteries for RC cars have the 3-wire setup too since they use Lithium Ion

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The Logitech mx mouse has a 3pin battery at will fit (should). I haven't had time to mess with it yet.

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@kuromifanboi

Yes the third wire will always be the thermistor wire. Measure theohms across this wire and the negative battery wire. Should be about 100 ohms or 1000 ohms.

And, you can re-use theold thermistor with thenew battery. If you are good with a soldering iron.

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