☰
×
Login Register an account
Top Submissions Explore Upgoat Search Random Subverse Random Post Colorize! Site Rules
3

Do batteries require minimum input to charge?

submitted by ClitorisDestroyer to whatever 2.9 yearsJun 26, 2021 22:20:49 ago (+3/-0)     (whatever)

Is there a battery that wouldn't charge, or worse, if you fed it 0.1V and 0.1A


16 comments block

sort by: hot new top old low

[ - ] account deleted by user 1 point 2.9 yearsJun 27, 2021 00:32:54 ago (+1/-0)

account deleted by user

[ - ] MasklessTheGreat 1 point 2.9 yearsJun 26, 2021 23:02:43 ago (+1/-0)

Yes, the minimum is higher that the voltage of the battery plus hysteresis losses. Basically you need a few more volts that the battery for it to charge and ultimately the power source must be a few volts higher than the final battery voltage.

I’m good at this shit so if you have more questions, I have more answers.

[ - ] account deleted by user 0 points 2.9 yearsJun 27, 2021 08:26:43 ago (+0/-0)

account deleted by user

[ - ] account deleted by user 0 points 2.9 yearsJun 27, 2021 10:52:26 ago (+0/-0)

account deleted by user

[ - ] Goatboy 0 points 2.9 yearsJun 27, 2021 11:33:25 ago (+0/-0)

Who do I look like, Elon Fucking Musk? Go to college and figure it out.

[ - ] mikenigger 0 points 2.9 yearsJun 27, 2021 07:12:25 ago (+0/-0)

Good rule of thumb is you have to provide at least the range from nominal voltage to fully charged voltage.

And never mess with lithium batteries, use a proper charger.

[ - ] lord_nougat 0 points 2.9 yearsJun 27, 2021 00:18:57 ago (+0/-0)

Yes.

[ - ] Cantaloupe 0 points 2.9 yearsJun 26, 2021 23:22:35 ago (+0/-0)

Be careful charging batteries make certain you're familiar

[ - ] GoatsAdvocate 0 points 2.9 yearsJun 26, 2021 22:48:38 ago (+0/-0)

minimum should be no less than the charge cut-off current.

Charging too slow will have implications and as well as too fast. Idk if there is an exact sweet spot but I prefer 0.5 to 1mah and most chargers go up to 2. If that’s what you were eluding to

[ - ] i_scream_trucks 0 points 2.9 yearsJun 27, 2021 03:41:10 ago (+0/-0)

Heat degradqtion can be a thibg too, if the bqttery gets too hot charging can slow down.

[ - ] binrobinrro 0 points 2.9 yearsJun 27, 2021 23:50:38 ago (+0/-0)

*Alluding

[ - ] GoatsAdvocate 0 points 2.9 yearsJul 1, 2021 03:08:05 ago (+0/-0)

Thanks poindexter.

[ - ] Not_a_redfugee 0 points 2.9 yearsJun 26, 2021 22:25:02 ago (+1/-1)

If u fed it .1V it would never get more than .1V. To charge a battery you gotta give it more than what it has. If u gave a 12V battery
12V charge at .1A, it would charge, but charge slower and slower as it gets close to 12V. So throw 13V at it to get it up to around 12.5V, where you want it.

[ - ] SparklingWiggle 0 points 2.9 yearsJun 26, 2021 23:02:28 ago (+0/-0)

Agreed, many 12V chargers, including vehicle alternators provide about 13.5V.