What needs to be respected is written on the label...
Lithium tech allow a significantly greater amount of energy
to be in a far smaller and lighter package.? And if not managed
they can deliver it all in short order, such as short circuits.
25C and 50C? that means the nominal discharge current times
either as a maximum.? ?So we are talking in excess of 50A and
as high as 500A,? things melt if not adequately fused or
otherwise protected.? That can include the battery itself.
That means for a lot of uses its safe if not abused, that includes
both mechanical and electrical abuses. Specifically do not bend,
fold, spindle, mutilate, peirce, overheat, charge while too hot or
too cold.? All kidding aside how many of those abuses are
perpetrated by the average Ebiike or Hoverboard user?
That's a 148WH battery, if pushed to the limit easily delivers?
7400wh for maybe a minute.? That is a lot of energy.? For that
level of power we are talking the equivilent of a 10Hp engine!!
Its also enough power to run a 100W radio (about 240W
DC input) for maybe hours depending on TX and RX time.
While being able to supply the needed 18-20A on 100W TX.
This is why power tools and other safe batteries are max
current protected for discharge.? Most all have a matching
charge system.??For example I have a built up 18650
11AH 3S4P pack with BMB selected for a current cutoff
of 8A.? Since its only running a FT817 that is more
than needed but enough to protect the battery from a short.
If I were to attempt to charge with more than 13.1V the
board cuts off the battery and rendered it safe.? If any cell
in the pack goes under 2V or over 4.2 it also cuts off. It uses
a specific charger I made for it.?? That is basic protection.
Another pack with BMS does both that and has a charging
port that has the needed current and voltage control for
charging with uncontrolled voltage source, again for safety.
It also does charge leveling plus all the BMB safety functions.
But the BMS value is it allows for a simple wall wart charger
with enough output voltage as all the management is on
the board.
So if I were to use that pouch pack battery it would be placed
in a heavy wall plastic case with BMS added and suitable
connectors for field and other uses.??
Or I'd just buy a battery with all that is in a nice hard plastic
case with standard tab or wire connectors.
FYI most of the 7-9ah Lithium tech (usually Lipo or Lifepo4 families)
replacement for gell cell 12V batteries do all that as well.
However if you buy a quality battery with protection it will outlast most
other alkaline (NiCd, Nimh) and lead acid tech but a wide margin
making their cost actually economical.
Allison
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Please use the forum, offline and private will go to bit bucket.
