A few recommendations: first don't solder on the cells. It does damage the cell and you risk a thermal runaway (had it happen twice when trying to make one battery), instead invest in a cheap $20 spot welder like I did, it was well worth it. Next you really should have an addition insulation layer between each cells as the wraps often wear over time and short out the battery. Finally I have really liked the molicel P42A 21700 cells. With those, I have a 315 gram 4s 4200mah that will give 23+ minutes of flight with burst currents as high as 75amps.

deng u made it look so easy

Nice vidéo ! What cable did you use ? 20awg ?

Thank you

very cool!

Hi, I wanna ask: I have a Parrot Jumping Night Drone: Drone: 3.7V 2A Max Battery Pack: Li-PO 3.7V 550mAh 2Wh 15C Cont Discharge Battery is dropping. Usually I can play up to 20 mins, now below 5 minutes. I want to diy using 18650 battery. I have AWT 3500mAH 3.7V 35A High Drain and MXJO 3500mAH 3.7V 20A (both are authentics). I use for vaping device. - Can I use my vape battery to drone? I plan to mount only 1 battery, probably using battery slot so I can easily recharge it. I have Nitecore UM2 USB Charger. - If can, do I have to tear down the original battery, take the BMS and put into 18650 battery or I can simply soldering cable at drone connector to the battery without BMS? For safety reason, which is best? - Also, there are 3 connectors on the drone, I think 1 for battery level, how to soldering it so I can see the battery level on the smartphone. - I think with 1 single 18650 battery with 3500mAH, I can get very longer play time. I confuse with 2A Max warning on the drone and 30A or 20A on the battery. Can you help giving me understanding about it? Waiting for your feedback. Thank you

Hello.please tell me,how many amps can draw from the pack?!Can i use for edf 64mm where usually i use 4s lipo 50c 2200mah?! Also what size is pvc termo for covering liion cells??!! Thanks

Nice video. Do you have to do Anything differenct in parallel charging these li ion packs compared with lipo?

video was so fast you could not see how and where connections were made.

danke für dein video aber es ist sehr schnell

Excelente

👏👏👏👏

Can u send me wich sandpapper did u used, and the wire diameters to link the batteries?

Flight time???

This was potentially a great video..... but speeding it up was really annoying.

Thanks, the ones I found were 30 A, but 15 A continuous? Is there enough to power a long range quad (not freestyle)?

Thx, what width (flat) heat shrink did u use for the cover? I've ordered 70mm, will it be ok?

You do everything so fast, why? I can't understand your work steps. Other youtuber, make it better and clearer and there you can understand the steps better. I can not replicate because I'm afraid to make a mistake.

What is the size of that heat shrink?

You should go faster it was very slow!

Bad vidio

ma smettila di fare questi video viene il nervosismo sii piu' serio