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Battery problem

biswasg

New Member
Join
Dec 6, 2020
Messages
2
Age
63
I had bought the DJI Spark Fly More Combo (Alpine White) in November 2017. After a little use, I did not use it for almost 2 years. Recently, when I tried to use the Spark, the batteries did not seem to be charging. I tried charging through the 3 battery platform as well as directly in the Spark. Only the first two green lights blink. Even after charging them overnight, the batteries remain dead.
Anything else I should do?
 
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Spark 317

Well known member with a Spark and a Mavic Air 2.
Premium Pilot
Join
Jul 10, 2017
Messages
4,879
Loc
Indiana, USA
Sorry about your batteries.

They may have sat too long and may not work again.

They are supposed to have a minimal charge at all times through battery care by charging them up to 50-75% and let them sit for a month and repeat the process.

A minimum charge of 10% is required to maintain the intelligence of the battery and once that is depleted, so is the battery.

Batteries are still available for purchase on line.

B and H Photo had some for $49 but are currently out, but more are on the way.

Amazon has them for $63.

shop around and good luck.

Welcome to the Forum. :cool:
 

NOLADG

Well-Known Member
Join
Nov 28, 2019
Messages
65
Age
51
Ah, I am not sure the battery availability in Switzerland. I remember seeing a video where a person rejuvenated some completely dead cordless drill batteries by giving the individual cells power from a charged cell for a very short time. This gave them enough power for the charge controller circuit to allow the battery to be charged normally.

There are also people who connect a standard Lipo battery to the Spark as well... Try googling
 

SuPaSAINT

New Member
Join
Dec 21, 2020
Messages
1
Age
31
I'm having the same problem. I've been Googling for the past 3 days and haven't really found any solution other than to buy new batteries. I was able to open up one of my batteries and manually charge it with a bench-top power supply to 12.6V (4.2V/cell) @ 0.125A (low current to reduce risk of fire/explosion). The battery is holding a charge which is good indication the cells are not totally ruined from over-discharging (albeit, likely has degraded capacity). Despite returning the pack to a stable state, the charging hub and USB air craft charger refuse to charge the battery. When inserted in the air craft, I can press once, press and hold for 2 seconds to turn the battery on, but the air craft will not power up. I did some more digging and discovered the battery management IC is a Texas Instruments part number (BQ9003). I couldn't find a datasheet anywhere for this IC. I believe the battery management IC sets a persistent error flag when over-discharged which renders the battery useless. To reset this flag would require an SMBus adapter and software, similar to what is shown in the two videos linked below. Cheapest I could find a TI EV2300 HPA002 pod was for $100 on eBay ($120 for two new battery packs on Amazon...).

Battery Mavic Air Repair (Remove Permanent Fail):
Battery Phantom 4 Repair (BQ30Z55) - Romanian Lang:
(This one is in Romanian, but you can auto-translate captions to English)

Here is a good summary of the issue:




Disclaimer: I do NOT recommend anyone attempt to manually recharge an over-discharged LiPo battery without first knowing what you are doing. There is a real risk of fire and/or explosion so precautions must be taken.
 

NOLADG

Well-Known Member
Join
Nov 28, 2019
Messages
65
Age
51
Wow. That looks like more work than I would be willing to do. That will give me a motivation to make sure maintain my batteries correctly while storing them.

Thanks for posting!
 

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