DIY - 4S1P Li-Ion 18650 3400mAh Battery

Introduction: DIY - 4S1P Li-Ion 18650 3400mAh Battery

About: I love fly. Im a electronic, robotic and automation technician. I like drawing 3D parts.

I love flying and DIY.

I checked that some people fly a lot of time with wings with these batteries, so I decided to do my own 18650 battery.

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Step 1: What Do You Need?

18650 Li-Ion Batteries - https://bit.ly/2KWxf43

Solder Station - https://bit.ly/2rDxdWR

Tweezer https://bit.ly/2wxEgVC

Larger Iron tip - https://bit.ly/2rDiF9F

40mm heat shrink tube - https://bit.ly/2wD0rKp

Some silicon wires

4S balance connector, you can get it easily from one bad battery.

Step 2: Prepare Your Batteries to Solder

With one knife scrape both poles, plus and minus.

Step 3:

Join the 4 batteries with a measuring angle square and put some hot glue.

Step 4: Soldering

Put your solder iron at 350/400º degree.

Put iron solder for 2 seconds on the battery pole and put enough solder to wiring.

Step 5: Wiring

Step 6: Heat Shrink Cover

Cut a little piece of heat shrink tube more 20mm than length of 18650 battery.

Almost done!

Step 7: Already Done to Fly.

A comparison with Tattu R-line 1550mAh battery.

I can fly with my Reptile S800 Sky Shadow 40 minutes, important to say at 25% throttle.

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    4 Discussions

    0
    fastledtechnology
    fastledtechnology

    8 weeks ago

    Hello,
    Be very careful, you can't make it like this.
    You must use a BMS to protect your battery from shortcut, overvoltage, current limit....
    Using like this is very dangerous, it there's any problem your battery can burnt and explode.
    Look for BMS and put it on your circuit.

    0
    Bzhprod5
    Bzhprod5

    Reply 5 weeks ago

    Bonjour,
    Pourquoi un bms?
    Si il a un chargeur avec équilibrage il en a pas besoin?

    0
    Uncle Kudzu
    Uncle Kudzu

    1 year ago

    Nice work! It looks very professional. Thanks for sharing links to the parts.

    That plane looks like it would be fun to fly.

    0
    FlyerFpv
    FlyerFpv

    Reply 1 year ago

    Thank you.