Sorry for the late response. With CNY and international trade fairs and parallel product releases work had to be put temporarily
on hold but will resume soon enough
. Yes we are now in march and to take wind out of the sails lemme foresee that spring can't cut it i am confident sorry. One thing i can assure you, this won't become a rushed release or development.
Heat protection. The charger has fuses, measures 5 temperatures (4 batteries, 1 internal) and it's accurate and can be followed in real-time, +0.1°C on the PC screen, +1°C on the LCD. The user can set the internal temperature when the fan should kick in (General Setting, via LCD:
{Auto|OFF|ON|20|25|…|45|50}°C ), and every stored program has a user-settable battery temperature for immediate program termination (Program Setting, via LCD, PC, or smartphone app:
{OFF|20|21|…|69|70}°C or
{OFF|68|69|…|157|158}°F) accompanied by a loud obnoxious warning beep ta-tü ta-tah melody.
Temperature readings. Let's keep in mind, we have 8 temp sensors, 4 warm batteries, 1 populated warm PCB, no possible thermal insulation/isolation between the 4 slots/batteries, and all stuffed within the confines of a compact charger; this means that when you discharge a single 4.35V Samsung 18650 in slot1 at max discharge rate, you
are going to notice a raise of slot temperature in the
empty slot4. I checked the physics, it can't be helped: heat always finds its way to wander around and distribute over the place. One cannot really guide and isolate the different heat paths and heat sources. Heat is to dissipate quickly by distribution, hence one measurement (slot1) will also affect the measurement on the other end (slot4) by a noticeable bit. In other words, while the measurements are accurate per se (+0.1°C), they don't necessarily represent with 100% accuracy "
the battery temperature" —a thing which doesn't exist anyway because temperature has always been a scalar
field quantity T=T(t,x,y,z)— rather than the temperature at the sensor itself, and the sensor doesn't know/care from where exactly the heating originates. In fact, on the screen you can also see the influence of warm daytime versus chilly nighttime in the 24h-plot of the 'battery temperature' reading.
In short, temperature measurements are helpful for orientation yet should be taken with a grain of sugar. They represent the heat around the tip of the sensors and not from where it originates or accumulates. :devil:
and am now dependent on my Galaxy android for which the bluetooth app isn't ready yet for distribution.
hehe.
