If wired like this would both batteries charge?

not reliably or safely

>>1092459
What would make it safe?

>>1092459
They would charge reliable and safely, you're thinking of lipo's in series. The only downside is that they will charge at half speed, but that probably isn't an issue.

File: li_ionwiring.png (1MB, 1564x1564px) Image search: [Google]

1MB, 1564x1564px

>>1092451
try this instead....

>>1092469
>The only downside is that they will charge at half speed
or one of them will charge and the charger will stop feeding them. or they'll both half charge. or something in between

>>1092451

Yes, paralleling batteries works and the charging/protection circuits don't really care. You could put a 100 in parallel and it would still work.

Unless the batteries are busted or you are charging/discharging at currents higher than a single battery can take.

The only issue would be the moment you connect them in parallel, if they aren't balanced you get a current spike. So charge or discharge both to nearly the same voltage before putting them in parallel.

>>1092451
Yes.
Same method most lipo chargers use.
The charge regulation circuit is in the battery itself, that little bump in the package at the top.

That being said... only with lipo's that have that circuit. Some don't so be careful what you buy.

>>1092451
why not just buy one for each battery. they're like three for a dollar

>>1092504
I'm using it to make a GBA rechargeable. It would be damn foolish putting in 2 of those chips

How to make series chain charging? Better would be only with those tp4056.
Kind of balancer?

>>1092472
> charging batteries in series

You're gonna have a bad time

>>1092523
You do realize lipo batteries are rated at 3.7V nominal per battery right? What you want us 3V TOTAL for your gba

>>1092948
Li-ion not Li-po*

>>1092451
Assuming you dont have dumb cells it would be fine and safe.

They would charge in half the time as stated before and I charge cells like this all the time.

Your cells NEED an overcharge prorection circuit built in. If they dont and the cells are even slightly imbalanced one will keep being charged when it doesn't need it.

You cant charge them in series like the other idiot posted because the charge voltage at each cell will only be half of the line.

>>1092947

This.

The original configuration is better. It will take longer to charge (split amperage) but at least it will charge. Doing it in series will either drop the voltage too much to charge the second one or just start a fire.

>>1092480
How can that happen? The voltage over both cells with be the same, meaning they will both charge up to that voltage eventually.

>>1092451
Yes but only if each of the batteries have their own protection circuits.
You'll also need to fully discharge both cells before putting them in the circuit otherwise you'll end up with catastrophic battery memory problems

>>1093264
The current provided by the charger has to go to two batteries instead of one, so it'll take longer.
>>1092459
I used the exact same configuration of OP to change the busted batteries of a handheld vacuum cleaner and so far it has worked flawlessly.

>>1092451
This is fine.

>>1092472
What the fuck is wrong with you?

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>>1092480
no

>>1093472

Parallel batteries are balanced period.

>>1093472
Wire 2 batteries that are unbalanced in parallel and hook them to a lightbulb


You'll see in just a couple hours they will balance out nicely

>>1092948
That's why he's using two in parallel, dingus. There's probably a voltage regulator in the GBA; if there isn't, he'll have added one himself.

>>1093570
There is no voltage regulation in a gba, it is designed for 2 AA batteries, that is it's voltage regulation, and while the nominal voltage of an 18650 is 3.7V the peak is 4.5V

And on top of that, if no doesn't understand how to wire 18650s do you think he understands voltage regulation?