I bought this charger from Amazon to charge the batteries for my Air 2:
https://www.amazon.com/Hanatora-Battery-Controller-Parallel-Charging/dp/B08J7M1MPL?ref_=ast_sto_dp
I like it and it charges 4 batteries in parallel in a little over an hour, but it has me a little concerned because it always seems to overcharge the batteries slightly. As it approaches 13.2V, the current drops to 0.7A, then 0.5A, then 0.3A, then the battery goes to LED 3 blinking twice per second and charging stops. According to the Air 2 manual, LED 3 blinking twice per second means "Overcharge detected":
By that time the charge current has dropped to almost nothing, so I doubt it's harming anything, but I wanted to see if anyone else with this charger sees the same behavior. My guess is it's just a subtle difference between what the charger thinks "fully charged" means and what the Smart Battery thinks "fully charged" means. It's the battery that controls the charging process, so it's probably just a matter of it detecting a full charge while the charger is still applying voltage, so it sets an error condition which shuts off the charger anyway. With the genuine DJI charger, there's probably some kind of communication going on that prevents this.
Anyway, this charger seems pretty popular, so anybody else see the same behavior with theirs?
https://www.amazon.com/Hanatora-Battery-Controller-Parallel-Charging/dp/B08J7M1MPL?ref_=ast_sto_dp
I like it and it charges 4 batteries in parallel in a little over an hour, but it has me a little concerned because it always seems to overcharge the batteries slightly. As it approaches 13.2V, the current drops to 0.7A, then 0.5A, then 0.3A, then the battery goes to LED 3 blinking twice per second and charging stops. According to the Air 2 manual, LED 3 blinking twice per second means "Overcharge detected":
By that time the charge current has dropped to almost nothing, so I doubt it's harming anything, but I wanted to see if anyone else with this charger sees the same behavior. My guess is it's just a subtle difference between what the charger thinks "fully charged" means and what the Smart Battery thinks "fully charged" means. It's the battery that controls the charging process, so it's probably just a matter of it detecting a full charge while the charger is still applying voltage, so it sets an error condition which shuts off the charger anyway. With the genuine DJI charger, there's probably some kind of communication going on that prevents this.
Anyway, this charger seems pretty popular, so anybody else see the same behavior with theirs?
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the link you sent points to a samsung phone charger
