diff --git a/frontend/device/generic/powerd.lua b/frontend/device/generic/powerd.lua
index 039eb4a19..3bb8dbadd 100644
--- a/frontend/device/generic/powerd.lua
+++ b/frontend/device/generic/powerd.lua
@@ -191,6 +191,11 @@ function BasePowerD:getAuxCapacity()
     return self.aux_batt_capacity
 end
 
+function BasePowerD:invalidateCapacityCache()
+    self.last_capacity_pull_time = TimeVal:new{ sec = 0, usec = 0}
+    self.last_aux_capacity_pull_time = TimeVal:new{ sec = 0, usec = 0}
+end
+
 function BasePowerD:isAuxCharging()
     return self:isAuxChargingHW()
 end
diff --git a/frontend/ui/uimanager.lua b/frontend/ui/uimanager.lua
index 941d3c6e4..ceaa6c6e3 100644
--- a/frontend/ui/uimanager.lua
+++ b/frontend/ui/uimanager.lua
@@ -1792,6 +1792,10 @@ Executes all the operations of a resume (i.e., wakeup) request.
 This function usually wakes up the device.
 ]]
 function UIManager:resume()
+    -- MONOTONIC doesn't tick during suspend,
+    -- invalidate the last battery capacity pull time so that we get up to date data immediately.
+    Device:getPowerDevice():invalidateCapacityCache()
+
     if Device:isCervantes() or Device:isKobo() or Device:isSDL() or Device:isRemarkable() or Device:isSonyPRSTUX() then
         self.event_handlers["Resume"]()
     elseif Device:isKindle() then