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Charging Mini 2 batteries
261 7 10-17 08:24
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Jackie-Gan
Second Officer
Flight distance : 448763 ft
Mexico
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Does charging the Mini 2 batteries in the hub with a charging brick over 29w (say 45w), hurt the batteries?
10-17 08:24
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DJI Stephen
Super Moderator

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Hello there Jackie-Gan. Good day and thank you for the inquiry. It would be best to use the recommended charger on your DJI Mini 2's intelligent flight batteries for compatibility and reliability purposes. Thank you.

10-17 18:53
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djiuser_nO2RdSW5BSUg
First Officer
Flight distance : 15078773 ft
Poland
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The battery has an internal software protection of 3600mA. Connecting a more powerful charger will stop charging or setting the charging power to about 29W.
10-17 21:56
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mrderrick
lvl.2
Flight distance : 43806 ft
Australia
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All devices will only draw what they can regardless of how capable a charger is.

You can throw 100w charger and it will only charge at ~30W in the case of the charger hub. This applies to phones, laptops etc.
10-17 22:49
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Jackie-Gan
Second Officer
Flight distance : 448763 ft
Mexico
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mrderrick Posted at 10-17 22:49
All devices will only draw what they can regardless of how capable a charger is.

You can throw 100w charger and it will only charge at ~30W in the case of the charger hub. This applies to phones, laptops etc.

Thank you, this is very useful information.
10-20 21:10
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Eheran
lvl.2

Germany
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To actually answer the question, does it "hurt" the batteries?
Yes, charging at higher speeds does cause more fatigue. However, after 200 cycles (double what DJI "guarantees"), does it matter if the battery lost 22 instead of 20% of its capacity? At the same time, instead of waiting 3 h per charge to really preserve the battery, you can actually fly for hours since it charges pretty much as fast as you empty another one in the drone. This is such a big deal that I dont care about slightly faster battery degradation.

On the other hand, charging to (and keeping it at) 100 % causes lots of ware. Charging to 90 % causes much less wear (not even half!) on the battery AND is much quicker since you barely leave the CC phase of the charging process. This is both for storage (yes they discharge themselfe after some time, but no need to do damage) as well as flying. Yes, you lose a little time in the air, but if you want to conserve the costly battery this is the best thing to do. See here for sources. Link

Edit: Great, the added link is simply not present in the post. Well done DJI, so here it is:

https://accubattery.zendesk.com/hc/en-us/articles/210224725-Charging-research-and-methodology

10-22 01:22
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Mhinc
First Officer
Flight distance : 138481 ft
Canada
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djiuser_nO2RdSW5BSUg Posted at 10-17 21:56
The battery has an internal software protection of 3600mAh. Connecting a more powerful charger will stop charging or setting the charging current to about 29W.

This is exactly the correct answer.  Ignore the mod and their template BS script that helps no one.
10-22 01:28
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Bob-Mini-2
Captain
Flight distance : 17182 ft
United States
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IF you have or can get the correct charger, use it, and hopefully no worries.  
     On the subject of Mini-2 batteries, I had one go so low the other day,
(from normal non-use drainage) that NO lights lit when I plugged it into the
charging hub.  However - it did charge up nicely, and worked well in flight.
First time I ever had one go down that low???
10-22 10:05
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