seanspotatobusiness
Newly Enlightened
- Joined
- Jul 12, 2010
- Messages
- 81
...for normal charging I will still prefer a charger with non-pulsing CC/CV charging.
Does anyone know why HKJ prefers non-pulsing CC/CV charging? What's wrong with pulsing?
...for normal charging I will still prefer a charger with non-pulsing CC/CV charging.
Does anyone know why HKJ prefers non-pulsing CC/CV charging? What's wrong with pulsing?
With smaller cells, you may charge with 10 times rated current in the pulses.
When the charge is nearly finished a pulsing charger will often charge with voltage above 4.2V.
Both are minor details, that is avoided with a non-pulsing charger.
Results for the Opus:
Discharged capacity measured: 3502mah instead of 3252mah with the mc3000. The capacity measured with the Opus is too high than the cell specs.
People are saying the opus charges to 4.22v, mine definitely stops at 4.2, what gives?
I just got myself a second one and the Voltage reading are terribly wrong. A 4.20v cell reads at 4.13v. My first charger reads it at 4.21v.
Is it possible to calibrate these chargers, or is my unit just defective?
When people say this I always wonder what equipment the use to check the charger. The meter has to measure the voltage in the 0.2 second the charger turns the current off (My preferred meter for this is a Keithley DMM7510, but it is a bit expensive).
With that said the precision on these charger is not that good, but I believe somebody said it has a very rough calibration (Something with a solder bridge).
Mine was showing 4.2v when it was really 4.16v fully charged ,I did a bit of research on this forum & came across a thread that discussed desoldering the J1 solder blob , I did it and now it's only 0.01v off , it now shows 4.2v & my multimeter says 4.21v.
I tried to find the thread so I could post a link to it ,but I can't find it ,I was only reading it 2 days ago.
I've got pictures of the circuit board where the J1 bridge is but I can't post pictures on this forum for some reason, I had to use a magnifying loop to spot it as it's very small.