![]() ![]() Do not touch the soldering iron to the fixture because it can melt. ![]() The fixture will align the Red and Black wires as you solder. Insert the NCR18650B battery in to the Battery Fixture with the positive side facing up. Various Lengths 26 AWG Standard Red and Black Stranded 4 Amp Max Wire Listed Below: 1 6.10" Black Wire. Using batteries that don't meet these specifications can lead to dangerous battery damage.)Ģ Hirose Socket 24-28 AWG Crimp Pin DF3-2428SCC ġ 1" Wide Kapton Tape Roll 2 1" Kapton Tape Disc ġ 1" Diameter Piece of Heat Shrink Tubing 2.7" Long 2 1/16" Piece of Heat Shrink Tubing 1.0" Long 1 Roll of solder wire 1 3D Printed case (File available on previous page.) If you need to use other brands, make sure that they meet the same specifications, chemistry, and can handle up to 2 Amps of charge current. Reference Other brands of batteries are NOT recommended because the charge controller current to the battery can be as high as 2000mA and the Panasonic NCR18650 chemistry can handle it. Protected batteries have added length with a built-in circuit, which may affect performance. Make sure it's unprotected and check the battery part number carefully. The main IC component is the Maxim MAX8903G charge controller.)ġ NCR18650B 3350mAh Unprotected Panasonic Lithium Ion Battery (If lower cost is necessary, try the Panasonic NCR18650A battery with a slightly less capacity of 3070mAh. can be downloaded from the previous page. Here is a list of the materials, tools, and files required.ġ Lithium-Ion Charge Controller Circuit (Schematic, Gerber Files, etc. 3D printed parts may warp under high temperatures.įCC Compliance: NOT Required because the circuit frequencies are below 1.7MHz Please use recommended battery and circuit components because of the higher 2000mA max battery charge current involved. *WARNING: Be careful when handling any Lithium-Ion battery because shorting the battery can cause burns. * Compatible with Arduino, iPhone, Android, Windows Phone, and Others with 5 Volt DC-DC converter module * Provides up to 320% iPhone Charge or 160% Galaxy S5 Charge with two cells 6700mAh * Battery Life Under Typical Use: 5 years * Replaceable Battery * Output - Current: Up to 2000mA | Voltage: 3.6 Volts direct or 5 Volts with DC-DC converter module * Output - Standard Arduino Style Female and Male Headers * Number of USB Ports: 1 (depending on the number of 5V adapter modules) * Input - Current: 450 to 2600mA | Voltage: 5 to 6 Volts Power Stacker Specs: * Time to Fully Charge: Watts 3350mAh: 3 hours | Watts 13400mAh: 7 hours The highest voltage battery in the stack will discharge the most until the other batteries reach close to the same voltage and they too will begin to discharge at the same rate, which multiplies the current output of the battery pack. This allows the interconnections between the input and output pins of each charge controller board to become bus bars allowing the voltage to remain the same and the current to multiply. Low forward voltage/high current diodes on the charge controller board are installed on the input and output of the circuit, which prevent cross talk between multiple power sources and between the output of the charge controllers. Power stacker is also compatible with Open Source DC-DC converters like Adafruit's Power Boost 1000. Combined with my knowledge of 3D printing, I created a case for the battery that can be printed, modified, and shared! You can literally use the same Power Stacker batteries for many years across many applications!Īnother unique feature of Power Stacker is that each battery receives its own charge controller, which guarantees true cell balancing and makes sure that each battery is charged to the right voltage in real-time even while charging and/or discharging.Īfter launching a successful Kickstarter project called Solderdoodle Pro, I realized that the same battery technology used to melt solder could be used to solve the problem of trying to find the right battery and having to constantly purchase new batteries for every new project. Power Stacker does what other USB rechargeable batteries have failed to do, and that's the ability to combine together for increased battery capacity or separate in to many small batteries for smaller projects. Stack them together for power hungry projects or separate them for smaller projects with this modular system. Power Stacker is a portable, modular, USB rechargeable lithium-ion battery pack. ![]() Please click below to visit our Hackaday project page! ![]()
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