From 7f6ad5cbbbc39233aa45a3b79dc5e55ac5fceb5a Mon Sep 17 00:00:00 2001
From: Thomas Preisner <mail@tpreisner.de>
Date: Wed, 26 Jul 2017 16:51:31 +0200
Subject: [PATCH] zsh: prompt: check for battery and improve detection of pcs
 with acpi

---
 zsh/prompt.zsh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/zsh/prompt.zsh b/zsh/prompt.zsh
index 7c1fe78..0acc5d6 100644
--- a/zsh/prompt.zsh
+++ b/zsh/prompt.zsh
@@ -57,7 +57,7 @@ zshrc_prompt_precmd() {
 
 	# battery percentage, if acpi is available
 	local battery_pct=
-	if type acpi &> /dev/null ; then
+	if [[ -d /sys/class/power_supply/BAT*(#qN) ]] && type acpi &> /dev/null; then
 		battery_pct="$(acpi -b | cut -d, -f2 | sed -e 's/[^0-9]//g')"
 
 		# colorize battery percentage or display status