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  • Welcome to our site! Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.

power bank

  1. C

    Help powering 12v bilge pump with 65W power bank and Power Delivery trigger (ZY12PDN)

    Hi folks, I am attempting to power a small 12V 3A bilge pump (I'm not using it on a boat) with a power bank that supports Power Delivery up to 65W and is rated to do 12V 3A. I have a 100W USB-C to USB-C cable connected to the PD output port of the power bank and then to a PD trigger (ZY12PDN)...
  2. G

    How to make a simple power bank with 8 D batteries and an inverter ?

    I ordered a battery holder for 8 D cell batteries to make 12vdc and was wondering if an inverter like they make for cars would work with that to make 110vac for temporary use with various devices, LED lamps, ect. either outside or during a power outage. I was thinking maybe a 200watt inverter...
  3. L

    Build Your Own Custom Voltage (12 Volts Default) Lithium ion Battery Bank

    I have made a video on Youtube about the prototype of a high-quality battery bank that I have developed and tested over more than 6 months now. It is Lithium-ion battery-based and the current prototype uses a 4s combination. I have built it to output dual 12 volts and each output can deliver up...
  4. M

    Reviving dead 10400 mAH Power Bank

    Hi everyone I have an Innjoo E6 (10400 mAH) Power Bank, that was dropped accidentally, it no longer works ( Status LEDs do not light, devices connected to the bank are not charging) I'm trying to figure out what went wrong, started with the batteries and they are fine, I disconnected them &...

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