Product description
Compact and smart module to keep powerbanks alive that otherwise shut down in order to save power. Suitable to use for low-power projects powered by 5V from a powerbank. The module draws power intermittently so it does not draw power unnecessarily. The pulse time is adjustable with a potentiometer from approx. 4 seconds to 45 seconds. Each pulse is approx. 100 ms long. The current consumption when inactive is less than 1 mA and when pulsed, approx. 70 mA (can be increased to 100 mA with solder bridge). D+/D- are bridged between the USB connectors so the unit does not need to be removed for programming or data transfer.
EKM004 – Powerbank Keep-Alive Module. The EKM004 is a compact and intelligent module designed to keep powerbanks from shutting down due to low current draw. It is developed and manufactured by Electrokit. Suitable for low-power projects powered by 5 V from a powerbank. The module creates short current pulses to avoid unnecessary power consumption. The pulse interval is adjustable via a potentiometer, ranging from approximately 4 seconds to 45 seconds. Each pulse lasts about 100 ms. The current consumption during idle is below 1 mA, and during a pulse around 70 mA (can be increased to 100 mA via solder bridge). The D+ and D– lines are bridged between the USB connectors, allowing programming and data transfer without removing the module.
Specifications:
- Self-consumption: < 1 mA
- Pulse current: 70 mA or 100 mA
- Pulse duration: 100 ms (0.1 s)
- Pulse interval: 4 - 45 s (adjustable)
- Connection: USB-A male to USB-A female
- USB data lines: Direct passthrough (unaffected)
