Holy stone hs440

[Scottlmx]

Hi, I got a holy stone hs440 the other day flew it on the first battery put the second one in started flying and realized that one of the four green lights on the controller was out. I can not find any info on what these lights are for. Any help would be appreciated greatly thanks. P.s the drone seems to be flying great.

 

[tester73]

Battery indication.

 

[Chicagoland drone flyer]

If your controller is rechargable.... likely a status indicator for state of charge for the controller battery. I wish my Holy Stone HS-720 had a rechargable battery instead of the 2 AA batteries.