diff --git a/bpytop.py b/bpytop.py
index bee680a..d7a5e6f 100755
--- a/bpytop.py
+++ b/bpytop.py
@@ -1574,6 +1574,7 @@ class CpuBox(Box, SubBox):
 	battery_secs: int = 0
 	battery_status: str = "Unknown"
 	old_battery_pos = 0
+	old_battery_len = 0
 	clock_block: bool = True
 	Box.buffers.append(buffer)
 
@@ -1697,10 +1698,11 @@ class CpuBox(Box, SubBox):
 				battery_symbol = "■"
 			else:
 				battery_symbol = "○"
-			battery_pos = cls.width - len(f'{CONFIG.update_ms}') - 17 - (11 if cls.width >= 100 else 0) - len(battery_time) - len(f'{cls.battery_percent}')
+			battery_len: int = len(f'{CONFIG.update_ms}') + (11 if cls.width >= 100 else 0) + len(battery_time) + len(f'{cls.battery_percent}')
+			battery_pos = cls.width - battery_len - 17
 			if battery_pos != cls.old_battery_pos and cls.old_battery_pos > 0 and not cls.resized:
-				out += f'{Mv.to(y-1, cls.old_battery_pos)}{THEME.cpu_box(Symbol.h_line*(15 if cls.width >= 100 else 5))}'
-			cls.old_battery_pos = battery_pos
+				out += f'{Mv.to(y-1, cls.old_battery_pos)}{THEME.cpu_box(Symbol.h_line*cls.old_battery_len)}'
+			cls.old_battery_pos, cls.old_battery_len = battery_pos, battery_len
 			out += (f'{Mv.to(y-1, battery_pos)}{THEME.cpu_box(Symbol.title_left)}{Fx.b}{THEME.title}BAT{battery_symbol} {cls.battery_percent}%'+
 				("" if cls.width < 100 else f' {Fx.ub}{Meters.battery(cls.battery_percent)}{Fx.b}') +
 				f'{THEME.title}{battery_time}{Fx.ub}{THEME.cpu_box(Symbol.title_right)}')