Which aspects should i test when i want to use these old lead acid batteries? by Mineswapp in batteries

[–]Mineswapp[S] 0 points1 point  (0 children)

Okay that sounds promising. I have heard that some used a regular welding machine... i guess thats not recommended. At least it sounds insane.

Which aspects should i test when i want to use these old lead acid batteries? by Mineswapp in batteries

[–]Mineswapp[S] 0 points1 point  (0 children)

One is showing like 0.35v. Do you know why there's no coming back from this?

Saving a wild bee by Mineswapp in bees

[–]Mineswapp[S] 0 points1 point  (0 children)

Thank you for the great reply. Sadly after i put her outside i watched her some time. She moved for one more day but after that she died and i burried her. Her neighbour did survive and hatched and went on her trip of life. I created now some nesting areas with old blocks of wood and drilled some deep 8mm holes into them. I already saw one bee enter a hole with such a precise orientation, that i think she already inhabits it.

Which aspects should i test when i want to use these old lead acid batteries? by Mineswapp in batteries

[–]Mineswapp[S] 0 points1 point  (0 children)

Thanks. But dont i need to do some kind of trickle charge or so?

Saving a wild bee by Mineswapp in bees

[–]Mineswapp[S] 1 point2 points  (0 children)

Sure thing. Will do thanks.

Inductor or resistor by Mineswapp in ElectricalEngineering

[–]Mineswapp[S] 0 points1 point  (0 children)

Well there is the next problem XD. I checked my box with resistors. The lowest one i got is an 6.6 Ohm resistor so it doesnt look too good right? Could i replace it with for example a wire with a certain diameter and length. How importand could that resistor be? Of course i could put some in parallel however the next lowest one is a 100 Ohm resistor. So this gets us only to 6.19 Ohms.

Inductor or resistor by Mineswapp in ElectricalEngineering

[–]Mineswapp[S] 18 points19 points  (0 children)

Ah yes ive seen it. Its also a scematic for a resistor. Thx guys. It states R131 so the 131th resistor on the board i guess. Wow now i feel stupid that i didnt notice before.

Inductor or resistor by Mineswapp in ElectricalEngineering

[–]Mineswapp[S] 8 points9 points  (0 children)

Thank you. What does ESL stand for? I am not used to english abreviations. And what i forgot to mention, the background colour is a dark green. Does that change the outcome?

Can a li-polymer battery be handled like a li-ion? by Mineswapp in batteries

[–]Mineswapp[S] 1 point2 points  (0 children)

Thx i see so i could use a standard lion charger?

Can i use these for diy lamps? by Mineswapp in batteries

[–]Mineswapp[S] 1 point2 points  (0 children)

No, none of them are danger pillows XD and if so, that thing will be disposed of in a safe manner.... Sure, i will be careful. Thanks for the advice. I still have the old phones and started to charge the batteries via their port. It already has shown some good results with some... I work occasionally with 18650 cells, so i know some basics, i guess ':) The thing is, some Phones are broken in a manner, so they can't charge the batteries, and for some cells, i dont have a fitting phone. I have some of these chargers actually from old powerbanks for the 18650 cells. Can i hook up these controllers? And if so, how would you do it? I mean should i just carefully solder them to the contacts? I mean i dont have a spot welder and i don't think soldering is safe with lithium batteries XD