Tuesday, May 28, 2013

lithium-ion batteries, etc

With NiCd and NiMH batteries, charging can be tricky. You must be careful not to overcharge them, as this could lead to decreased capacity. To prevent this from happening, some chargers switch to a trickle charge or simply shut off when charging is complete. NiCd and NiMH batteries also must be reconditioned, meaning you should completely discharge and recharge them again every once in a while to minimize any loss in capacity. LiOn batteries, on the other hand, have sophisticated chargers that prevent overcharging and never need to be reconditioned.


andrea questions: WARNING: Do not attempt to charge the WNC-1500 with anything other than the USB charger cable provided.


Remove the top cover of your Bluetooth Headset. Cut remove the old battery. Solder back the new battery and cap back the cover. Make sure you charge your Bluetooth headset at least 8 hours the first 2-3 times after draining the power out each time.
Battery will take around 2 or 3 full 8 hours cycle charges to reach optimum performance.




There is one exception. Battery experts suggest that after 30 charges, you should allow lithium-ion batteries to almost completely discharge. Continuous partial discharges create a condition called digital memory, decreasing the accuracy of the device’s power gauge. So let the battery discharge to the cut-off point and then recharge. The power gauge will be recalibrated.I’ve always had an extra battery for my notebook, but it would never last as long as the original battery. I know now that it’s because I was storing the battery fully charged. That means oxidation of lithium-ion is at its highest rate.
The problem with using your notebook computer as a desktop with the battery installed is that the battery remains at full charge and at a relatively high temperature (when the notebook computer is running.)
With Li-ion batteries, you *might*
experience a *slight* shortening of the battery life since these guys like
high charging currents,
It's always possible to overcharge a battery. That's why there's an indicator telling you that charging is complete. Always unplug asap when you see this.
High temps when at full charge is detrimental to Lithium Ion batteries. That is why some notebook computers can be set to charge the battery to 50% or so instead of 100% so that if used as a desktop and plugged in all the time the battery doesn't isn't sitting at 100% all the time.


Charging when your battery reaches about 50% with an occational full discharge should help prolong the life of Lithium Ion cells. 50% charge cycles stress the batteries less than 100% cycles.



NiMH batteries self discharge about 1% per day so if used in a low energy consummation or stand-by device the battery will only last about 90 days before requiring recharge.


In order to prolong battery life the WNC-1500 was designed to go into sleep mode after ten minutes of non use. To wake the device press the power button on the headset once.


The Jabra GO 6430 supports both wideband and narrowband audio. Wideband audio offers better sound quality
at a reduced battery time.

I was just getting ready to post how much I like the WNC-1500. It is phenomenally accurate. And it holds a charge all day for me. And I do a lot of dictating.

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