[time-nuts] float chargers for oscillator backup power

Chris Albertson albertson.chris at gmail.com
Sun Oct 26 23:00:44 EDT 2014

> A pack made up of QUALITY 18650 sized cylindrical Li-ion cells would be a
> much wiser choice.  Only use cells from well known big-name makers (Sanyo,
> Panasonic, Samsung, Sony).  And make sure they are genuine cells.

Yes, buy decent packs made from soldered batteries.  Used as a backup to a
low current device they will last nearly forever.  They are designed to
about 100 full cycles at high current so they are grossly over spec's for
this kind of usage.     Expect to spend about $35 which is $110 less than a
T105.  And you don't need to add water to a LiPo.

ALL batteries contain lots of energy.  Those T105 batts needs to go into a
battery box that is strong and vented to the outdoors so hydrogen does not
build up.   All barely boxes need a fuse inside so that if the wires are
shorted you don't get an explosion.   A T105 can VAPORIZE a screw driver.

While on the subject, a cool way to supply backup power to an entire house
is with a conversion kit for a Toyota Prius.  Well, if you already happen
to own the Prius it's a cheap why to have a very powerful generator.

Chris Albertson
Redondo Beach, California

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