[Release] Smart Battery Charger

alk · January 3, 2021, 9:37pm

Hi folks,

I wrote a quick smart app that monitors the power on a smart plug and shuts it off when the power drops below a given threshold for three successive updates. I use it to prevent overcharging my various battery powered devices throughout the house.

Take a look. If you like it, let me know. If you see room for improvement, I'd also like to hear it. No promises on the next revision, but I have a long-term plan to implement a power convergence detection capability so you don't have to know what the steady-state/trickle charge power is.

github.com

alksoft/HubitatApps/blob/main/Smart_Battery_Charger.groovy

/*=============================================================================
 *
 *  Copyright 2021 Andrew Kershaw, alksoft
 *
 *  Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except
 *  in compliance with the License. You may obtain a copy of the License at:
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 *  Unless required by applicable law or agreed to in writing, software distributed under the License is distributed
 *  on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License
 *  for the specific language governing permissions and limitations under the License.
 *
 *
 *  SMART BATTERY CHARGER
 *  This app subscribes to a power metering smart plug and allows the user to set a minimum threshold below which the
 *  smart plug will shut off. For battery charging applications, this assumes that the minimum threshold corresponds 
 *	with the steady-state power when the battery reaches full or trickle charge and preserves the battery's life by
 *	shutting off the smart plug.
 *

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-alk

SoundersDude · January 4, 2021, 3:08pm

Awesome, what smart plug/power monitor are you using for this?

alk · January 4, 2021, 3:59pm

I’m using a Zooz Power Switch (ZEN15), but i also have a bunch of Aeon and Iris smart plugs around that I’ll put to use for this eventually, too. I’ve noticed that the Aeon plugs are not very responsive under HE, so that might not be ideal...

SoundersDude · January 4, 2021, 5:04pm

Cool, thanks.
I have the Aeotec Smart Switch 6, SmartThings GP-U999SJVLDAA.

Thinking through where I could/should use this.