diff --git a/apps/widbattpwr/widget.js b/apps/widbattpwr/widget.js
index c54f73ca2..58f89dc34 100644
--- a/apps/widbattpwr/widget.js
+++ b/apps/widbattpwr/widget.js
@@ -43,7 +43,7 @@
                 txt = "".concat(batt, "%");
             }
             else {
-                var hrs = 200000 / usage;
+                var hrs = 175000 * batt / (100 * usage);
                 var days = hrs / 24;
                 txt = days >= 1 ? "".concat(Math.round(Math.min(days, 99)), "d") : "".concat(Math.round(hrs), "h");
             }
diff --git a/apps/widbattpwr/widget.ts b/apps/widbattpwr/widget.ts
index 0507fb57d..de5352f32 100644
--- a/apps/widbattpwr/widget.ts
+++ b/apps/widbattpwr/widget.ts
@@ -47,7 +47,8 @@
 			if(showPct){
 				txt = `${batt}%`;
 			}else{
-				const hrs = 200000 / usage;
+				// 175mAh, scaled based on battery (batt/100), scaled down based on usage
+				const hrs = 175000 * batt / (100 * usage);
 				const days = hrs / 24;
 				txt = days >= 1 ? `${Math.round(Math.min(days, 99))}d` : `${Math.round(hrs)}h`;
 			}