This plugin is for showing batt info in your prompt the variable to configure are:
 
ZSH_THEME_ACBAT_PROMPT_CHARGED 			Shows if AC adapter is coneccted and batt charged
ZSH_THEME_ACBAT_PROMPT_CHARGING			Shows if AC adapter is coneccted and batt is charging
ZSH_THEME_ACBAT_PROMPT_DISCHARGING		Shows if AC adapter is disconeccted and batt discharging

ZSH_THEME_BATPERC_PROMPT_PREFIX			Prefix of batt perc
ZSH_THEME_BATPERC_PROMPT_SUFFIX			Suffix of batt perc
ZSH_THEME_BATPERC_PROMPT_CLRLESS25PRC		Color to show batt percent if charge is less than 25%
ZSH_THEME_BATPERC_PROMPT_CLRMORE80PRC		Color to show batt percent if charge is from 80% to 100%
ZSH_THEME_BATPERC_PROMPT_CLR40TO80PRC		Color to show batt percent if charge is from 40% to 80%
ZSH_THEME_BATPERC_PROMPT_CLR25TO40PRC		Color to show batt percent if charge is from 25% to 40%


Example config:

ZSH_THEME_ACBAT_PROMPT_CHARGED="%F{green}°%"
ZSH_THEME_ACBAT_PROMPT_CHARGING="%F{cyan}+%"
ZSH_THEME_ACBAT_PROMPT_DISCHARGING="%F{yellow}-%"

ZSH_THEME_BATPERC_PROMPT_PREFIX="%F{yellow}⚡% :"
#ZSH_THEME_BATPERC_PROMPT_SUFFIX=""
ZSH_THEME_BATPERC_PROMPT_CLRLESS25PRC="red"
ZSH_THEME_BATPERC_PROMPT_CLRMORE80PRC="cyan"
ZSH_THEME_BATPERC_PROMPT_CLR40TO80PRC="green"
ZSH_THEME_BATPERC_PROMPT_CLR25TO40PRC="yellow"