MMDVM ZumSpot Battery Case

thingiverse

This is an 18650 battery case designed for the popular HRO sold ZumSpot with 1.3" OLED screen and Pi-0-W computer board. It allows you to take your hotspot with you wherever you go. Or just use at home and unplug and go when needed without a reboot of the system. It is designed around the adjustable li-ion boost power supply board and other easy to source parts. Just a note on the parts, I've found that the dimensions of the charger board and the push button switch vary between orders. You may have to sand the edges of the board to get a proper fit. Also the switch may be tight and if you run into that I can upload a modified file to accommodate. Just ask. Parts List: -Li-ion 18650 3.7V 4.2V Battery Charger Board DC-DC Step Up Boost Module (http://www.ebay.com/itm/303216487352) -3.7V Li-ion Battery Power Level Indicator Module For Led Voltage Display Meter (http://www.ebay.com/itm/173654256564) -Micro USB Male Type B 5-Pin Jack Port Solder Connector (Amazon ASIN# B00OK8ELNA) -Belt Clip For BAOFENG Radios BF-666S BF-777S BF-888S (http://www.ebay.com/itm/271911858839) -4 x Metric M2.5X18mm Stainless Steel Allen Hex Socket Cap Head Fastener Screws -4 x Metric M2.5 Stainless Steel Allen Hex Bolt -6 x Steel Thread Rolling Screw for Plastic, Black Zinc Plated, Pan Head, Phillips Drive, #2-28 Thread Size, 1/2" Length (Amazon ASIN#B00GDXUD2S) -uxcell AA Battery Positive Negative Conversion Spring Contact Plate (Amazon ASIN# B00O9XVE2M) -Mini Push Button Latching On Off Switches (http://www.ebay.com/itm/183366037839) -18650 Battery -ZumSpot from HRO with 1.3" OLED screen and Pi-0-W You will also require hookup wire and the ability to solder and set the output voltage of the dc-dc boost controller using a multimeter. I set mine to 5.2 volts. 73 KC6NKK