It's more than one month that I test it with all available parameters and it is simply unthinkable to change charging parameters for each battery. So I did extensive testing to find out best standard charging parameters for most common battery types (AAA, AAA, C, D). These are now working with almost all batteries, but anyway sometimes a partially weared battery refuses to charge. This never happens with other chargers.
Anyway I firstly tried dV = -3mV and I found it works only with Eneloop battery in very good condition charged at C/2. These are the Panasonic recommended charging value. It never ended correctly a charging cycle with these parameters with other batteries, brand new. I found 0dV is the only working end of charge detection mode for general use.
Please consider I usually use 3 different types of AAA Ni-Mh batteries (Eneloop standard, Eneloop Pro, EverActive Pro - all with different capacity), 3 different types of AA Ni-Mh batteries (Eneloop standard, Eneloop Pro, EverActive Pro - same as above), 1 type of C Ni-Mh batteries, 2 different types of D Ni-Mh batteries + 3 types of Li-Ion batteries. Multiply the batteries number for the three main mode (Charge/Discharge/Refresh) you will get a nightmare of needeed profiles. That's why I had to find a common profile for all AAA battery types, one for AA and so on.
Truly I set two different profiles for AAA, and two for AA, the first one to achieve a fast charge rate (just for Eneloop Pro), the second for a "soft" charge rate (with a charging current about C/3 - somewhat function of the battery capacity under charge).
Anyway this is too much complicated and I don't like at all. With chargers like the Everactive, with just some buttons press, you simply set the mode and the charging current and I never had issues also using very low charging current. You can set it to charge/discharge/refresh all kinds/size/capacity of Ni-Mh batteries in a breeze. Surely it gains from the use of a low frequency pwm charging mode (pulse), but I think it has a better implemented alghoritm to detect the end of charge point.
For my thought, far better than a bulky charger like the SkyRC that you have to set very accurate to obtain a decent result. A very bad user interface......
Anyway I firstly tried dV = -3mV and I found it works only with Eneloop battery in very good condition charged at C/2. These are the Panasonic recommended charging value. It never ended correctly a charging cycle with these parameters with other batteries, brand new. I found 0dV is the only working end of charge detection mode for general use.
Please consider I usually use 3 different types of AAA Ni-Mh batteries (Eneloop standard, Eneloop Pro, EverActive Pro - all with different capacity), 3 different types of AA Ni-Mh batteries (Eneloop standard, Eneloop Pro, EverActive Pro - same as above), 1 type of C Ni-Mh batteries, 2 different types of D Ni-Mh batteries + 3 types of Li-Ion batteries. Multiply the batteries number for the three main mode (Charge/Discharge/Refresh) you will get a nightmare of needeed profiles. That's why I had to find a common profile for all AAA battery types, one for AA and so on.
Truly I set two different profiles for AAA, and two for AA, the first one to achieve a fast charge rate (just for Eneloop Pro), the second for a "soft" charge rate (with a charging current about C/3 - somewhat function of the battery capacity under charge).
Anyway this is too much complicated and I don't like at all. With chargers like the Everactive, with just some buttons press, you simply set the mode and the charging current and I never had issues also using very low charging current. You can set it to charge/discharge/refresh all kinds/size/capacity of Ni-Mh batteries in a breeze. Surely it gains from the use of a low frequency pwm charging mode (pulse), but I think it has a better implemented alghoritm to detect the end of charge point.
For my thought, far better than a bulky charger like the SkyRC that you have to set very accurate to obtain a decent result. A very bad user interface......
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