How do I know if my charger is bad?

[parcou]

Hi all

I have the Spektrum S2100 dual charger (2x100W). I recently purchased from a user here a Spektrum S1100 single charger (100W). Keep in mind this is with Spektrum and non-Spektrum batteries....today it's gensacearespammers batteries...

Balance charging.... (one battery at a time I am not using dual-port....using each charger in this test as a single charger)
gensacearespammers 3S 5500mAh 60C
Charge/Storage charge all at: 4A
The storage level is: 3.80v

S2100 charger
3.6v (left in the cells) it storage charge within 10-15min and stops
Normal and what I have seen since it was my only charger for months now

New
S1100 charger
3.6v (left in the cells) it storage charge can run 30-60min (avg 45min)
Then it gets to 3.79v and you can see it working there for the last 40-60 mins of that time above

I have never seen the S2100 do this. It's like the S1100 is really doing a better or real balance of the cells as it works at the 3.79v range for a while.

I could be wrong on all this but the way I see it like the S2100 has been cheating me.

Like to get your thoughts?

Thx

 

[Monster Dork]

Spektrum is a black box, so you don't really know what it is doing. It's all in the software, and that's a secret.

I agree with your assessment, the balance charge sounds like it is charging to a very tightly-defined value on the S1100.

Storage voltage is really not a fixed value, but a fairly broad range. The S2100 might just be pumping watt-hours at a full 4A charge until it get's in range, then cutting off, recovery voltage be damned.

It's probably fine either way. It's just storage voltage. But for a 4.20v charge, it had better peak-charge that byotch!

 

[kavax]

Can't speak for the Spektrum chargers but with balancing and discharging there seems to be a gap between chargers that do a much more efficient job at getting the batteries in balance or discharged quicker than others. Don't recall the brand I have not that it matters because it's essentially the same four button charger that all brands have is MUCH slower than my Hota brand to balance.

 

[parcou]

Thx all....I might go Hitec X2 charger down the road not that it addresses the post...moving away from smart batteries anyway get a more universal charger.

Good feedback...thx