I know there are lIPO batteries in the drone. What is the battery type in the RC Controller? I assume it isn't LIPO.

That’s a great question.. I do know I read before in one of these forums that dji wouldn’t sell the RC battery

Hello there Astro Bob. Thank you for reaching out and for the inquiry. The type of battery for the DJI Mini 2 remote controller is Li-ion battery. The battery capacity of the DJI Mini 2 remote controller is 5200 mAh and it takes 4 hours to fully charge the remote controller using 18W charger. Thank you.

DJI Stephen Posted at 2-15 20:19
Hello there Astro Bob. Thank you for reaching out and for the inquiry. The type of battery for the DJI Mini 2 remote controller is Li-ion battery. The battery capacity of the DJI Mini 2 remote controller is 5200 mAh and it takes 4 hours to fully charge the remote controller using 18W charger. Thank you.

Thank you for sharing this

RenegadeCowboyAZ Posted at 2-16 12:31
Thank you for sharing this

Hi there RenegadeCowboyAZ. You are very much welcome and if you have any inquiries or concerns with DJI. Please feel free to post it here at DJI Forum. We are here to help and assist you. Thank you.

DJI Stephen Posted at 2-16 22:14
Hi there RenegadeCowboyAZ. You are very much welcome and if you have any inquiries or concerns with DJI. Please feel free to post it here at DJI Forum. We are here to help and assist you. Thank you.

I absolutely will...have a great night

RenegadeCowboyAZ Posted at 2-17 19:30
I absolutely will...have a great night

Hi there RenegadeCowboyAZ. Thank you for the reply, have a safe and a happy flying always. .

Thats good news. It means you do not have to keep the controller at storage charge.

bjr981s Posted at 2-19 00:10
Thats good news. It means you do not have to keep the controller at storage charge.

Ad it is also a bit less worry about battery failures, danger, etc. than the LIPOs in the MINI II drone. Thanks all for the prompt answer.

DJI Stephen Posted at 2-18 21:08
Hi there RenegadeCowboyAZ. Thank you for the reply, have a safe and a happy flying always.  .

Same to you friend and be safe

Take a look at post #29 in this thread. https://forum.dji.com/thread-79581-1-1.html

The M2 RC battery is a common 3.7V 18650 Li-Ion battery with a custom connector.  These batteries are offered in a variety of mah capacities, usually around 2200 - 3500 mah - the 18650 designation actually specifies the dimensions (18 x 65mm).  It's not easy to properly solder leads to these batteries, so you probably want to find one with some kind of leaded connector attached (like the one referred to in the other post) and splice the original DJI lead to it.

DJI Stephen Posted at 2021-2-15 20:19
Hello there Astro Bob. Thank you for reaching out and for the inquiry. The type of battery for the DJI Mini 2 remote controller is Li-ion battery. The battery capacity of the DJI Mini 2 remote controller is 5200 mAh and it takes 4 hours to fully charge the remote controller using 18W charger. Thank you.

So, even though I store my drone batteries at 40-60% charge, I can store my controller at 100% charge?

TomKatt Posted at 8-10 02:08
The M2 RC battery is a common 3.7V 18650 Li-Ion battery with a custom connector.  These batteries are offered in a variety of mah capacities, usually around 2200 - 3500 mah - the 18650 designation actually specifies the dimensions (18 x 65mm).  It's not easy to properly solder leads to these batteries, so you probably want to find one with some kind of leaded connector attached (like the one referred to in the other post) and splice the original DJI lead to it.

A little supplement. In both rc to mini 3 pro the batteries are actually identical, except that they are Li-ion batteries with the less common chemical composition of LiNiMnCoO2 - NMC. They are a bit lighter than the other 18650s. Their nominal voltage is 3.69V and the maximum voltage is 4.25V.

djiuser_uyGUI22GV4vD Posted at 10-5 09:50
So, even though I store my drone batteries at 40-60% charge, I can store my controller at 100% charge?

Prismatic cells do swell when stored at 100%. I haven't heard of a case of cylindrical batteries swelling, but it's definitely not advisable to keep them 100% frequently.