diff --git a/apps/widsmartbatt/widget.js b/apps/widsmartbatt/widget.js
index b8323f24b..df299f99c 100644
--- a/apps/widsmartbatt/widget.js
+++ b/apps/widsmartbatt/widget.js
@@ -1,45 +1,17 @@
-//Learns by averaging power usage every time it is updated
-
-
 (function(){
-  
-  
-  const storage = require("Storage");
-  const filename = "widsmartbatt.json";
-  let runningAvg;
-  var newJson=false;
-  
-  //check if json file exists;
-  
-  function CalcHoursRemaining (batt, usage) {
-    
-    var hrsLeft = 175000 * batt / (100 * usage);
-    return hrsLeft;
-    
-  };
-  
-  function addValue(val) {
-    let summary = storage.readJSON(filename, 1) || { total: 0, count: 0 };
-    summary.total += val;
-    summary.count++;
-    storage.writeJSON(filename, summary); // SAVED!
 
-    let avg = summary.total / summary.count;
-    runningAvg=avg;
-  }
+  const intervalLow = 30000; // update interval when not charging
+  const intervalHigh = 30000; // faster update when charging
+  var showPercent = false;
+  const width = 40;
+  const height = 24;
 
-  
-  const intervalLow = 60000; // update time when not charging
-  const intervalHigh = 2000; // update time when charging
-  var showPercent=false;
-  const width=40;
-  const height=24;
   let COLORS = {
-    'bg':    g.theme.bg,
-    'fg':    g.theme.fg,
+    'bg': g.theme.bg,
+    'fg': g.theme.fg,
     'charging': "#08f",
-    'high':     g.theme.dark ? "#fff" : "#000",
-    'low':      "#f00",
+    'high': g.theme.dark ? "#fff" : "#000",
+    'low': "#f00",
   };
 
   const levelColor = (l) => {
@@ -49,62 +21,73 @@
   };
 
   function draw() {
-    var _a = require("power_usage").get(), usage = _a.usage, batt = _a.batt;
-    var s = 29;
-    var x = this.x, y = this.y;
-    var txt;
-    
-    //Add this to total and get the average
-    addValue(usage)
-      
-    if(showPercent){
-      txt=batt;
-    }else{
-      var hrsLeft=CalcHoursRemaining(batt,runningAvg);
-      var days = hrsLeft / 24;
-      txt = days >= 1 ? "".concat(Math.round(Math.min(days, 99)), "d") : "".concat(Math.round(hrsLeft), "h");
-    }
-    
+  let batt=E.getBattery();
+  let data = require("smartbatt").get();
+  let hrsLeft=data.hrsLeft;
+  let days = hrsLeft / 24;
 
-    let xl = x+4+batt*(s-12)/100;
+  let txt = showPercent
+    ? batt
+    : (days >= 1
+      ? Math.round(Math.min(days, 99)) + "d"
+      : Math.round(hrsLeft) + "h");
+  if(Bangle.isCharging()) txt=E.getBattery();
+  let s = 29;
+  let x = this.x, y = this.y;
+  let xl = x + 4 + batt * (s - 12) / 100;
+  
+  // Drawing code follows...
+  g.setColor(COLORS.bg);
+  g.fillRect(x + 2, y + 5, x + s - 6, y + 18);
 
-    g.setColor(COLORS.bg);
-    g.fillRect(x+2,y+5,x+s-6,y+18);
+  g.setColor(levelColor(batt));
+  g.fillRect(x + 1, y + 3, x + s - 5, y + 4);
+  g.fillRect(x + 1, y + 19, x + s - 5, y + 20);
+  g.fillRect(x, y + 4, x + 1, y + 19);
+  g.fillRect(x + s - 5, y + 4, x + s - 4, y + 19);
+  g.fillRect(x + s - 3, y + 8, x + s - 2, y + 16);
+  g.fillRect(x + 4, y + 15, xl, y + 16);
 
-    g.setColor(levelColor(batt));
-    g.fillRect(x+1,y+3,x+s-5,y+4);
-    g.fillRect(x+1,y+19,x+s-5,y+20);
-    g.fillRect(x,y+4,x+1,y+19);
-    g.fillRect(x+s-5,y+4,x+s-4,y+19);
-    g.fillRect(x+s-3,y+8,x+s-2,y+16); // tip of the battery
-    g.fillRect(x+4,y+15,xl,y+16); // charging bar
+  g.setColor(COLORS.fg);
+  g.setFontAlign(0, 0);
+  g.setFont('6x8');
+  g.drawString(txt, x + 14, y + 10);
 
-    g.setColor(COLORS.fg);
-    g.setFontAlign(0,0);
-    g.setFont('6x8');
-    g.drawString(txt, x + 14, y + 10);
-
-    if (Bangle.isCharging()) changeInterval(id, intervalHigh);
-      else                   changeInterval(id, intervalLow);
-  }
+  if (Bangle.isCharging()) changeInterval(id, intervalHigh);
+  else changeInterval(id, intervalLow);
+}
 
 
-  Bangle.on('charging',function(charging) { draw(); });
-  var id = setInterval(()=>WIDGETS["widsmartbatt"].draw(), intervalLow);
+  // Touch to temporarily show battery percent
   Bangle.on("touch", function (_btn, xy) {
-        if (WIDGETS["back"] || !xy)
-            return;
-        var oversize = 5;
+    if (WIDGETS["back"] || !xy) return;
 
-        var w = WIDGETS["widsmartbatt"];
-        var x = xy.x, y = xy.y;
-        if (w.x - oversize <= x && x < w.x + width + oversize
-            && w.y - oversize <= y && y < w.y + height + oversize) {
-            E.stopEventPropagation && E.stopEventPropagation();
-            showPercent = true;
-            setTimeout(function () { return (showPercent = false, w.draw(w)); }, 3000);
-            w.draw(w);
-        }
-    });
-  WIDGETS["widsmartbatt"]={area:"tr",width:30,draw:draw};
+    var oversize = 5;
+    var w = WIDGETS["widsmartbatt"];
+    var x = xy.x, y = xy.y;
+
+    if (w.x - oversize <= x && x < w.x + width + oversize
+      && w.y - oversize <= y && y < w.y + height + oversize) {
+      E.stopEventPropagation && E.stopEventPropagation();
+      showPercent = true;
+      setTimeout(() => {
+        showPercent = false;
+        w.draw(w);
+      }, 3000);
+      w.draw(w);
+    }
+  });
+
+  // Update widget on charging state change
+  Bangle.on('charging', function () {
+    WIDGETS["widsmartbatt"].draw();
+  });
+
+  var id = setInterval(() => WIDGETS["widsmartbatt"].draw(), intervalLow);
+
+  WIDGETS["widsmartbatt"] = {
+    area: "tr",
+    width: 30,
+    draw: draw
+  };
 })();