Browsed by
Category: Tech

e-Bike Lithium Ion Load Tester

e-Bike Lithium Ion Load Tester

Using power resistors is not feasable, but AC halogen bulbs are easily sources up to 500W , so multiple bulbs can be used to vary the current

120Vrms
500bulb watts
28.8bulb resistance
52battery voltage
93.88889watts
1.805556amps

So on a 52V battery pack a 500w halogen bulb would draw about 1.8Amps

Voltage can be monitored with a simple voltage divider to lower the 52V to something suitable ( < 3v probably )

Current can be monitored with a shunt

30A FL-2 DC 75mV Current Shunt Resistor for Ammeter Amperemeter Panel Meter

www.ebay.co.uk/i/362323528806Read More

Programmable LED strips

Programmable LED strips

These are perfect for so many cool applications. I really want to upgrade the static red and white LED strips on my Quadcopter with these so that the whole strips and function as a white strobe as well as navaigation lights and also to show warning events, like low battery etc.… Read More