Bob F <
bobn...@gmail.com> wrote:
> Dee wrote:
>
>> How old is the battery? The older the battery, the quicker it will
>> drain.
>
> I bought the battery a year or 2 ago.
I've not found a smartphone whose battery does not gas when left plugged
in all the time. The internal charger is supposed to stop charging, but
it continually tops off which will heat the battery which makes it gas.
Is the battery removable (by just popping off the back cover, and not by
disassembly)? If so, take a look at the battery. Does it look pregnant
(bulging)?
In every smartphone that I've had, I leave it connected to the charger
(USB port) when it's at home on my desk. In about a year, or a little
more, I'll find the battery is bulging, and have to replace it to get
the back cover back on. For me, the cost ($7-10) is okay per year to
let me have an always charged battery ready when I take the phone away
from home. In fact, I get smartphones with replaceable batteries so I
can carry a spare to swap in when the current one is too low. Much
easier to tote a spare battery inside a small ziplock bag (almost the
same size as the battery) in my fob pocket than that haul around a power
bank (which I do take on trips because it's about 5 times the capacity
of a single battery). My first clue to the battery becomed aged (not by
years, but due to gassing which is electrolyte degradation) is the
uptime diminishes. The phone, once removed from the charger, has
shorter and shorter on-power running time. When it gets to about half a
day, I check the battery, see it bulging, and put in a spare that I
already pre-purchased just for this scenario. When I replace the
battery, I buy another spare. I think I have 2 spares right now, plus
the one in the phone.
My aunt just asked me to repair her old Samsung Galaxy Core Prime phone.
She leaves that one plugged in all the time with a wifi connect to
webcam for her house. The battery bulged so much that the innards got
disconnected to the case. I don't see a means of repairing the phone
since it won't snap back together (after putting in a new battery). The
bulging battery was about twice its thickness and spongy due to the
gassing, and destroyed the phone. Hers took around 3 years before the
battery so bulged to damage the phone that she asked me to fix the
split-apart phone. The battery still worked, but its bulging destroyed
the phone. All lithiums outgas. You can only reduce it, not eliminate
it. For typical use where the phone is on the charger for just
overnight and then off the charger during the day, the battery loses the
ability to charge (wanes in capacity) before users notice the bulging.
Sorry, don't know if the permanently-sealed batteries and the charger
inside the sealed phones are any better. I won't be getting one of
those until they are no longer available with user-replaceable
batteries. While the lithium battery has its own over-voltage
protection, overly low-voltage disable, and perhaps other safety
features, consumer-grade lithiums do not have an outgassing detector.
Offgassing occurs due to breakdown of the electrolyte. Batteries, by
their definition, are degenerative power source. Being chemical means
they degrade.
With average ownership of smartphone being 2 years (yeah, consumers are
that well trained in the newer-is-better mantra, and many are leased
instead of bought outright), the manufacturers figure they don't need
the batteries to last much longer than that, or even more than about a
month beyond the warranty. The sealed phones can often be dismantled to
replace the battery, but you'll damage the water-resistant seal and have
to unsolder the old and solder in the new battery.
From a glance at the specs for your phone, looks like you're lucky in
that its battery is replaceable. 3 years is about the average lifespan,
so you're getting due for a new battery. Also, if saying you bought a
new battery a year, or two, ago means that's not when you bought the
phone but separately purchased a battery, be aware there are counterfeit
batteries out there. You want to make sure you get a genuine Samsung
replacement battery, and never used, too. The counterfeits are made to
look almost identical to the genuine batteries. For me, while there are
other-brand batteries, so they are selling under their name and not
Samsung's, I still lump these "compatibles" with counterfeits. They
rely on consumers thinking "a battery is a battery". Nope, different
brands have different electrolyte formulations, built-in logic, and
other features. Make sure it says Samsung. Then check the quality of
the shine of the labels. Check if the printing is sharp or fuzzy.
Pricing is sometimes a good indicator, too, but I've seen compatibles
selling for higher than what a genuine can be bought.