Battery storage - hibernation mode

[iflyby]

I have been going through the DJI info about the hibernate mode for the Mavic 3 and Avata 2 batteries. I have several almost new (5 cycles or so) batteries that I would like to leave in storage for a year.


Any opinion on if I can trust them to go into hibernate mode and not get damaged, or do I need to leave them sitting in the chargers and have someone turn the chargers on for a few hours perhaps every other month? I have the three battery charger for both types of batteries.

 

[Cafguy]

Before you store them Charge or discharge your batteries to 60%.
Every month check them and charge to 60%
DO NOT forget them for more than a month,and DO NOT charge them to 100% and store them.

 

[DARKSeifer]

They are smart batteries, you can charge them to 100%, they'll auto discharge to 60% in a few days.

You want to check every now and then if they are still at 60% (you can tell by the LEDs that turn on) and cycle them every 6 months or so (fly or use them as a powerbank to 10-15%, recharge to 100% and leave them 6 months more).

The most important thing is that they don't fully discharge, if they sit at low voltage (0%) for an extended period of time they'll die prematurely, so check them.

 

[Droning on and on...]

Before you store them Charge or discharge your batteries to 60%.
Every month check them and charge to 60%
DO NOT forget them for more than a month,and DO NOT charge them to 100% and store them.

FWIW, I've followed a 6 month check-and-charge cycles for 10 years and never had a problem. Only time I had modules "go bad" and refuse to charge was when I forgot about my P4 for about 2 years, and the batteries sat. They acted like they had 2 lights of charge, but refused to charge at all.

 

[StantonZ]

You have some good advice, but I think it's a bit extreme compared to what I do.
First: I don't trust any battery to self-discharge (at least to the proper capacity). I always store my batteries ~50% after flying (no matter how long in between use), and charge them to 100% right before flying again.
Second: you don't need to do this every month...but I wouldn't wait 6 months either (even if it's just 1 flight).
I do this for all types of LiOn based batteries (car/laptop/drone/etc.).

 

[iflyby]

I appreciate all the good info! It has helped me to make some decisions I was going back and forth on with a greater degree of confidence.

 

[Droning on and on...]

You have some good advice, but I think it's a bit extreme compared to what I do.
First: I don't trust any battery to self-discharge (at least to the proper capacity). I always store my batteries ~50% after flying (no matter how long in between use), and charge them to 100% right before flying again.
Second: you don't need to do this every month...but I wouldn't wait 6 months either (even if it's just 1 flight).
I do this for all types of LiOn based batteries (car/laptop/drone/etc.).

Your advice is as good as mine. I can only state my own experience... six months has been just fine with DJI battery modules from just about every folding Mavic-like model for 10 years. Only ones I didn't have are the original Mini, and Mavic 3.

 

[Max Headroom]

They are smart batteries, you can charge them to 100%, they'll auto discharge to 60% in a few days.

For my smart batteries its 72% after 9 days.

 

[Cafguy]

Yes every month IS is a lot more than needed BUT as a hobbyist I tend to play with my batteries more than most people do so mine get checked a bunch lol.. I myself would still check them at say 3 months tho. DJI's way of doing things Is a great way of getting people in the habit of ignoring their Batteries. Not a good thing I.M.O. their way will not kill your Batteries if followed correctly BUT In my opinion its not the best way to do it.

 

[Droning on and on...]

Hey @Cafguy, no worries or criticism! You should follow whatever protocol works for you

I don't use my batteries anywhere near as much as you do. DJI FPV batteries just got some use after none for nearly 2 years (because of you and you're new FPV, by the way ).

 

[msinger]

I would like to leave in storage for a year

Storing your DJI batteries for an extended period like this will likely cause permanent damage to some of them, rendering them unable to charge.

Follow these tips to ensure your batteries remain in good working condition:

HOW TO: Maintain and store your DJI Mavic batteries | Mavic Help

Mavic Help is a site for help with DJI Mavic drones. Find the latest fixes, how-tos, guides, accessories, modifications, and more.

www.mavichelp.com

 

[Calson]

Every manufacturer of products using lithium batteries recommends not storing them for extended periods with a full charge. No reason to not do this, especially when it is easy and painless to take them down to 50% and put them away.

 

[msinger]

Every manufacturer of products using lithium batteries recommends not storing them for extended periods with a full charge. No reason to not do this, especially when it is easy and painless to take them down to 50% and put them away.

For DJI batteries, the key concern is preventing the charge from dropping too low. While you can manually discharge them, it’s not necessary since DJI batteries automatically discharge when needed. Your time would be better spent on charging your batteries only when preparing to use them or to bring them back up to a safe storage level.

 

[Max Headroom]

Every manufacturer of products using lithium batteries recommends not storing them for extended periods with a full charge. No reason to not do this, especially when it is easy and painless to take them down to 50% and put them away.

That is the beauty of smart batteries charge them up when you get home put them away if you don't use them in the next 9 days they slowly drop to 72% a lot easier than manually taking them down to 50%.

 

[Max Headroom]

Intelligent Flight Batteries have a built-in battery management system that monitors and reports their status in real-time.

They also have self-discharge protection that automatically discharges the battery to a certain capacity after a period of inactivity:

3 days: Discharges to 96% capacity

15 days: Discharges to 80% capacity

45 days: Discharges to 60% capacity