elkooo
Member
- Joined
- Aug 9, 2019
- Messages
- 32
Hello folks,
I just got a new OPUS BT-3100 charger.
Before I had a «Liito Kala li500» but it startet behaving strange on me (didn't measure voltages correctly and repeatedly accurate (at least not lately); not all slots had the same end-voltages and thus tested cells with different results) and lately I had cells that were overcharged to over 4.30V which is completely inacceptable if not to say very dangerous too. So this one will be disposed.
Now I just started a first «TEST» with the new OPUS charger. I have four 18650 cells in it (they were tested before and charged; the former test showed >2800mAh per cell and they are rated for 10A continuous discharge, cell type is LGDBMH11865).
Now during the discharge (I do it with 1000mA) it shows ~1000mA as the discharge current ±5mA or so. But from time to time it goes to 0mA (Thermal shutdown). Is this normal/usual at the 1000mA setup? I read it happens due to overheating (>60°C) but for my feeling the batteries get only warm - I can easily touch them - I think at 60°C they would be burning hot and not touchable...?!
What is your expirience with 1A discharge? Should all stay cool, do I have some heater cells there or is it the charger that misinterprets the temperature?
Looking forward to your replies.
Best,
Elkooo
I just got a new OPUS BT-3100 charger.
Before I had a «Liito Kala li500» but it startet behaving strange on me (didn't measure voltages correctly and repeatedly accurate (at least not lately); not all slots had the same end-voltages and thus tested cells with different results) and lately I had cells that were overcharged to over 4.30V which is completely inacceptable if not to say very dangerous too. So this one will be disposed.
Now I just started a first «TEST» with the new OPUS charger. I have four 18650 cells in it (they were tested before and charged; the former test showed >2800mAh per cell and they are rated for 10A continuous discharge, cell type is LGDBMH11865).
Now during the discharge (I do it with 1000mA) it shows ~1000mA as the discharge current ±5mA or so. But from time to time it goes to 0mA (Thermal shutdown). Is this normal/usual at the 1000mA setup? I read it happens due to overheating (>60°C) but for my feeling the batteries get only warm - I can easily touch them - I think at 60°C they would be burning hot and not touchable...?!
What is your expirience with 1A discharge? Should all stay cool, do I have some heater cells there or is it the charger that misinterprets the temperature?
Looking forward to your replies.
Best,
Elkooo