Battery store at 75%`?

[photo2be]

Hi!

I want at least two batts with me all the time. Is it ok to store them at approx 75% outside the charger?

 

[old man mavic]

@photo2be ,you wont do them much harm at that sort of level ,but they may still want to discharge after the set period ,biggest issue is the fact that you are not getting airborne with fully charged batteries
this is always the best way to start a mission as it gives you the most flexibility,should an issue arise during the flight ,and not having a full battery at lift off can cause issues with cell imbalance ,because the actual balancing part of the charge cycle takes place at the end of the charge cycle so there is no guarantee that the cells all have an equal voltage

 

[photo2be]

@photo2be ,you wont do them much harm at that sort of level ,but they may still want to discharge after the set period ,biggest issue is the fact that you are not getting airborne with fully charged batteries
this is always the best way to start a mission as it gives you the most flexibility,should an issue arise during the flight ,and not having a full battery at lift off can cause issues with cell imbalance ,because the actual balancing part of the charge cycle takes place at the end of the charge cycle so there is no guarantee that the cells all have an equal voltage

Thanx alot "Old Man".... will I notice any "non balance" if I let's say hover for a minute before I take of for real?

 

[CLAYB.7]

Hi!

I want at least two batts with me all the time. Is it ok to store them at approx 75% outside the charger?

Hey Brother the biggest thing with lipo batteries is swelling and they will do that if you leave a big charge on them over a long time of non use and I'm talking like a month or more it is best to store them at around 25-30% for long periods of time and the 2 cell lipo batteries we run in the MM2 have a built in balance board to equal out the charge as much as possible to each of the 2 cells in each lipo battery pack for our MM2 so you should have no problem there I hope this helps you out Brother God Bless Sincerely Clay B.

 

[old man mavic]

Thanx alot "Old Man".... will I notice any "non balance" if I let's say hover for a minute before I take of for real?

when you first take off check the individual cell voltages they should be all the same or very close if one of them is lower that the other one then that cell will reach a low reading first ,even if the other one is ok,, and can cause the drone to do a forced landing ,yes the battery does have a system to balance the cells ,but as i said it does that at the end of the charge cycle ,by switching between the cells reducing charge in one while increasing charge in the other till they are the same , so if you only charge them to 75% there is no guarantee that the cells will be at the same voltage

 

[msinger]

Is it ok to store them at approx 75% outside the charger?

Your batteries will be healthiest when stored between about 25-50%. See more details here:

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

As others mentioned above, it's safest to fly with batteries that are 100% charged.

 

[photo2be]

Your batteries will be healthiest when stored between about 25-50%. See more details here:

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

As others mentioned above, it's safest to fly with batteries that are 100% charged.

Sure, but when I'm on "the run" daily I don't want to keep the batt. at 100% for a week or so. Or? I can easily check the balance before every take-off. Or do you have any other great ideas? When I need the drone I need it instantly.

 

[msinger]

I don't want to keep the batt. at 100% for a week or so.

Right, keeping batteries at 100% all of the time will reduce their lifetime. It's kind of a trade off I guess. You could get a second/third set of batteries and rotate them weekly.

 

[photo2be]

Right, keeping batteries at 100% all of the time will reduce their lifetime. It's kind of a trade off I guess. You could get a second/third set of batteries and rotate them weekly.

Msinger.. you are right....

 

[TRogan42]

Hi!

I want at least two batts with me all the time. Is it ok to store them at approx 75% outside the charger?

manual says after 9 days battery will be dischared to 72% , but it is recommended to store the battery at 30%...

73% alwasy felt a bit too much, I keep my at around 50% and above 30%

When I come back with batteries below 30% like 10-15% I will top them to 40-50%

Try not to store them at 100% as they will discharge to 98-96% just next day and you will never have 100% full battery.

 

[dougrobertson]

Your batteries will be healthiest when stored between about 25-50%. See more details here:

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

As others mentioned above, it's safest to fly with batteries that are 100% charged.

Thanks for the link, msinger. I am curious about the battery for the Mini II controller. Do these guidelines apply to it, too?

 

[MAvic_South_Oz]

Really ? The Mini 2 battery only discharges to 75% or so for storage ?
This is very unusual, as most DJI model go to 55-60% or so.

Yes, if discharging even STARTS (after 'x' days set), uneven cell balances can cause flights to be quite dangerous . . . in that you might get 75% or whatever come up on the controller info, but in many cases seen here in the crash analysis reports, an undetermined time after take off the level can drop rapidly, leading to the inability to RTH.

Best to rotate on a roster on # or batteries, having 1 or 2 charged fully (and not starting to discharge) at any one time.
Yes, leaving them unnecessarily on 100% for whatever discharge days might have a detrimental effect on them long term, but you have to balance this with the ability to safely fly at a moments notice.

 

[Deleted member 154384]

I have always brought my three batteries to roughly 37% during the landing phase and the end of the flight. I almost always have a flight time of around 18 minutes. if I don't fly for a long time I always try to keep this percentage by charging them as soon as they self-discharge towards 30% to bring the batteries back to 37% I only recharge at 100% the same day I go flying and never had a problem.