Smart Controller Charging - "Top off"?

[Citizen Flier]

The Smart Controller for my M2P appears to take hours longer than the flight batteries to charge, and it seems to be approx the last 4% or full charge that takes so long to be attained. Not sure if this warrants concern, as I can typically exhaust my 3 flight batteries and still have plenty of SC charge. Just worried that it's an indication of deterioration. Have only had the system for about a year, and I don't fly frequently. Thnx

 

[Aerial-Pixel]

The Smart Controller for my M2P appears to take hours longer than the flight batteries to charge, and it seems to be approx the last 4% or full charge that takes so long to be attained. Not sure if this warrants concern, as I can typically exhaust my 3 flight batteries and still have plenty of SC charge. Just worried that it's an indication of deterioration. Have only had the system for about a year, and I don't fly frequently. Thnx

Make sure you are using the charger that came with the Smart Controller, while charging the lights should blink quickly if they are going slow you aren't using the included fast charger and it will take hours longer to charge.
The charging brick is black:

 

[bumper]

Adding to what Arieal-Pixel said.

Your Smart Controller will give you a warning prompt if it is slow charging. Besides the original quick charger, you can also use a QC 3.0 rated charger for your car or other aftermarket QC 3.0 charger.

For Quick Charging on the go, or even while flying, I bought one of these:

https://www.amazon.com/gp/product/B072MH1434/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1

 

[Citizen Flier]

The only charger I have is the DJI kit charger. That is not the issue.

 

[MiniMan]

The other indication of proper fast charging is the 4 LEDs flash rapidly in succession.

 

[rcpilot_971]

I just unboxed mine tonight I pluged it into the supplied wall charger and I am getting the Slow charger message.

 

[m2zAL]

By “supplied wall charger” are you referring to the small AC to USB block you plug directly into the wall or are you using the Larger AC power supply used to charge the Intelligent M2 batteries that also has a USB port on it?

I ask because the integrated USB port on the Larger DJI power supply for intelligent flight batteries will indeed charge at a slower rate. You must use the dedicated charger brick (or an aftermarket one) that supports quick charging for fast charging.

 

[rcpilot_971]

Mine is now working after I disconnected it and restarted it

 

[rcpilot_971]

The lights are now blinking fast

 

[Citizen Flier]

I am using the Supplied Smart Controller Charger. PERIOD. I get a 96% charge, then it can take hours to get to 100%. It may not even be an issue, but that is my question. Seems simple enough.

 

[CaptHook]

Yes, the SC charging will slow to a trickle charge near the end of it's charge cycle and will take a VERY long time to then get to 100% and shut itself off. Seems an overly-cautious (stupid) charging program.
I always disconnect it early, and it's usually at 97%-99%. (after like 1 hr from 35%)
I don't see any reason to leave it on the charger for an extra 3 hrs. to get the last 3% charge.

 

[Citizen Flier]

Yes, the SC charging will slow to a trickle charge near the end of it's charge cycle and will take a VERY long time to then get to 100% and shut itself off. Seems an overly-cautious (stupid) charging program.
I always disconnect it early, and it's usually at 97%-99%. (after like 1 hr from 35%)
I don't see any reason to leave it on the charger for an extra 3 hrs. to get the last 3% charge.

Thank you.

 

[ShadowCat]

I figured out it may be the charging cables used. I have been trying out different chargers and different cables. It turns out the dji supplied cable is key, along with any fast charger. As long as the dji cable is used the controller will fast charge. Once fullcharged it will switch off.

Hope this helps