I like how batteries fit perfectly into these lead acid battery shell's 😍
Thanks for sharing with us awesome ideas! 👍

That plastic bottle trick for the battery cover is genius!

One thing to ask: disconnected battery voltage was 12,3 volts.
battery voltage, connected to the working bike 12.2 volts. this means only one thing, alternator on this bike is not working or missing or disconnected.
Otherwise how the original lead acid battery is going to be charged?
Lead acid batteries require around 13,5-14 volts DC in the electrical system of the bike or a car.
Battery shown in this video is not suitable for direct replacement of the Lead Acid battery.
It will fail !

3:00 a pair of wire snips is all you need if you put the case in the freezer for a few hours.

The soldering of the cross pieces could be done on the bench. If a 'ladder' dia could be used the 'steps' would be made of a 'fuse  wire between two cells 9@2.5ah) that  has a common wire that is a tad thicker to complete the 12v s4 20ah  battery. Times that by 5, you have an e-bike  you can ride for a few hours.

Nice job, kind of weird that the cells fit so perfectly into the battery case! My personal preference is to twist wires prior to tinning which keep all the strands together and prevents any stray strands. Only other caution would be the fact everything is quite tight in there but in the use case with a very short discharge when starting and relatively low current charging it seems like a good solution 👏

Thank you, I tried it your way and it worked ❤

Soldering wires after wrapping battery with the protective plastic is absolute diabolical

Hi, great work on this set up . Even the snap bottle fit with the ridges .👍

it would be better to do 4s and undercharge then 3s and overcharge

Cool idea but I'm not sure about the recharging part. Do you need to use a voltage regulator do decrease the voltage before the battery?

Great battery build, love your shrink wrap trick be safe and careful.

...the music that gives shivers while waiting for an explosion... 😲💀 , very good job... 😜

Благодаря ти Еркан!

Great project, very smart solution👌👍🍀

Please guys 🙏🙏
Use BMS for these 18650 cells

Good job, my friend. Thank you.

Using plastic bottles for packaging is surprisingly clever.

Amazing... My question is, does the amount of charging voltage coming from the bike's charging coil affect the L(BMC) of the lithium-ion batteries... Thank you.

SI POTREBBE AVERE LO SCHEMA DEI COLLEGAMENTI DELLE BATTERIE 😉👏👏👏👏👏👏

How does the battery perform after years? The cells do not overcharge due to too high charging voltage? After all, the alternator generates a charging voltage of 14.5V, which is too high for 3S Liion. By the way, using a plastic bottle in this way is one of the best and smartest tricks I've seen on the net! :D I'll try that too. Thanks for video!