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How not to buy a LiIon



 
 
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Old November 11th 18, 05:23 AM posted to alt.comp.hardware.pc-homebuilt
Flasherly[_2_]
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Posts: 2,407
Default How not to buy a LiIon

Two "cell-phone" sized batteries. These were "buffered", as are some
Chinese interests, from ready West Coast US of A stock and facilities.
BL-5C is the nomenclature, common class, and the XHDATA I think may
have been augmented with some brandname. I cut off the wrappers,
anyway, taped both together to bare aluminum wrappers, so I could flip
the batteries when one runs out.

600-800 Mah are more usual among BL-5C offerings, 1500 being "high
capacity" storage reserves. Priced together was by far better than
anything [over]priced I saw being offered in the former class.

Performance, well, I'd just have to wait and see if that turned out
well, as has been my experience with off-brands among NICAD -
[over]ratings.

Nope, the BL-5C's win hands-down -- they're nothing short of a literal
double-take in phenomenal performance, capable of outlasting the two
mainstream 600-800Mah units, I retired, by a factor of x5 gain in
operational characteristics. Unit draw is on x2 array speakers in a
Chinese "grandfather/old folks" MP3/FM player.

The Chinese run the worlds largest *nix/Android systems, with 60% of
their population connected to a Chinese(tm) sub-WEB variant. Being a
Chinese WEB, or technology, was not coincident to a development of
German psychoacoustics, underlying MP3 standards, hence the old-folks
ideology may be of a subsequent convenience of nationalistic
rationale.

The player unit, however, is supportive of both handheld small-form
factor NAND and a common USB flashdrive. (Handheld NAND is a real
pain in the ass, to figure it out from unpublished Chinese
specifications for Class 5 Micro-NAND only, and not the subsequently
newer Class 10 thumbnail-cards.)

I've combined a 64G flashstick with 32G Class 5 camera and handheld
memory. 320Kb MP3 sampling rates are supported but I down-sampled to
192 or 128Kb for something along 5000-8000 songs in a unit size that
fits to a wrist strap, or is no bigger than an inexpensive camera.
Firmware limitations, would logically be 9999 readable songs from a
4-digit display, or one short of 10K.

The player field is one available both direct from Chinese mainland
and Amazon. Although Amazon may offer a modicum for a Chinese speaker
and factory representative, to support its related forum of reviews,
that may be accompanied by huge price markups over inferior models,
with some misinformation and regard for Chinese marketing as inferior
to Amazon support policies.

The outfit selling the battery mainly sells Chinese mainland shortwave
radio equipment, not the bizarrerie of Hong Kong HAM specialty shops,
but few select Chinese SSB units well-regarded against former
Western-brand dominance, which is why I chose them. Chinese
government of course may directly subsidize these various marketing
fields across a broader free enterprise system (sic) accorded
capitalistic marketing dogma. Not a disappointment either way: Score
one on a double-down battery pack for me.

Next, I've got to dig into the Garmin GPS and rig a microswitch to
turn off the unit from its native standby-maintenance mode, drawing a
small current on LiIon batteries in vehicles not run everyday,
actively tracking satellites for a instantaneous power-on and location
"feature". I'm not sure that's exactly destroying the batteries,
although the GPS charge circuitry and overall inconvenience of a dead
"trademark" Garmin is not even anywhere near a simplicity of
recharging the Chinese Old-Folks MP3 player.

9 1 2018
Sold by
Estimated delivery Tuesday, Sep 11, 2018
XHDATA BL-5C 1500Mah Rechargeable Battery With Current Protection
Pieces 2
Item price $7.98
Quantity 1
Item number 283106499888
Shipping service USPS First Class Package
total 7.98

I do have, aside, one nondescript LiIon that is operable from 10 years
or longer. It sits connected to charger for a cell phone, all day and
all of the night, still to hold operable time when, upon occasion, I
remove it for 8-12hr. extended stints.
 




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