Today's lock down project. I'm going show you how to make your own 6S lithium ion, 3400 mAh battery pack. I've got a load of these NCR18650B cells left over from last year and I need some 6S packs for a long duration drone project that needs a few of them. Sure you won't get 95C type performance from these beach the internal resistance is higher than a LiPo. But where you need a more constant and lower current delivery for longer periods, lithium ion cell are the best choice - that's why Tesla use them.
If you're going to make this, it's at your own risk and you need to be 100% confident of what you're doing. And always wear safety glasses when soldering batteries. A molten blob of hot solder that short across a couple of cells will splatter everywhere and the last place you want it is in your eyes.
NCR18650 spec:
Capacity: 3400mAh
Charging Voltage: 4.2 V
Energy: 12.2 Wh
Energy Density: 730 Wh/L
Nominal Voltage: 3.6V-3.7V
Weight: 46g
Max. Discharge rate: C Rating 2C (Maximum recommended current 6.8A)
Top (positive side): Flat top
Charge Current: 1.6A (0.5C)
For charging use a 3.7V lithium ion profile on you charger, but these have an end charge of 4.2 volts, so you can just use a LiPo setting at 0.5C which is 1.6A. But if you choose another manufacturers cells, check their spec.
For this pack you need:
► 6 x 3400 mAh 3.7V Lithium Ion cells - I used Panasonic NCDR18650B
► 1 x XT60 wired connector
► 5 x Interconnect wire or coper/nickel strips
► 1 x 6S balance lead
► 105mm 0.15mm PVC heat shrink
► Misc neoprene and plastic insulating parts
► Capon tape
╔════╡My Gear╞════════════════════════╡
║ ► HD Goggles - FatShark HDO: http://bit.ly/2VYgjmX
║ ► Regular Goggles - FatShark Dominator V3: http://bit.ly/2YKTHmW
║ ► VRX Module - OwlRX: http://bit.ly/2wjIehD
║ ► Radio - Taranis X9D: http://bit.ly/2WZPzyC
║ ► Portable Battery Charger - ToolKitRC M8: http://bit.ly/2VJPE8c
║ ► Workshop Battery Charger - iCharger 406 Duo: http://bit.ly/2VDMG5m
║ ► Soldering Workstation - Saike-909: http://bit.ly/2JAr9Jc
╚══════════════════════════════════╡
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