diff --git a/src/lib/components/shell/Battery.svelte b/src/lib/components/shell/Battery.svelte
index 20dc57b..d2da14f 100644
--- a/src/lib/components/shell/Battery.svelte
+++ b/src/lib/components/shell/Battery.svelte
@@ -22,7 +22,7 @@
 			class="battery"
 			class:low={isLow}
 			class:charging={battery.charging}
-			title="Battery {battery.level}% {battery.charging ? '(charging)' : ''}"
+			title={battery.charging ? `Offline, recharging (${battery.level}%)` : `Available (${battery.level}%)`}
 			aria-expanded={open}
 			onclick={() => (open = !open)}
 		>
diff --git a/src/lib/components/shell/BatteryPopover.svelte b/src/lib/components/shell/BatteryPopover.svelte
index b1fdead..2ead720 100644
--- a/src/lib/components/shell/BatteryPopover.svelte
+++ b/src/lib/components/shell/BatteryPopover.svelte
@@ -1,30 +1,36 @@
 <script lang="ts">
 	import Icon from '@iconify/svelte';
+	import { slide } from 'svelte/transition';
 	import {
-		batteryCapacityWh,
-		batteryHealth,
+		availabilityLabel,
 		batteryIcon,
-		batteryStatusLabel,
 		formatDuration,
-		isBatteryFull,
 		isBatteryLow,
-		powerRateLabel,
+		moodLabel,
+		weekdayHoursLabel,
+		weekendHoursLabel,
 		type BatteryState
 	} from '#lib/desktop/battery';
 
 	let { battery, onclose }: { battery: BatteryState; onclose: () => void } = $props();
 
-	const isFull = $derived(isBatteryFull(battery));
+	let scheduleOpen = $state(false);
+
+	const schedule = [
+		{ label: 'Weekdays', value: weekdayHoursLabel },
+		{ label: 'Weekends', value: weekendHoursLabel }
+	];
+
 	const isLow = $derived(isBatteryLow(battery));
 	const timeLeftLabel = $derived(
-		`${formatDuration(battery.minutesRemaining)} ${battery.charging ? 'until full' : 'left'}`
+		battery.charging
+			? `back in ${formatDuration(battery.minutesRemaining)}`
+			: `${formatDuration(battery.minutesRemaining)} left`
 	);
 
 	const details = $derived([
-		{ label: 'Battery size', value: `${batteryCapacityWh}Wh` },
-		{ label: 'Health', value: `${batteryHealth(battery)}%` },
-		{ label: 'Charge cycles', value: `${battery.chargeCycles}` },
-		{ label: 'Power', value: isFull ? '-' : powerRateLabel(battery) }
+		{ label: 'My time', value: battery.localTime },
+		{ label: battery.charging ? 'Back online' : 'Offline at', value: battery.charging ? battery.backOnlineAt : battery.offlineAt }
 	]);
 
 	function handleKeydown(event: KeyboardEvent) {
@@ -42,12 +48,10 @@
 				<Icon icon={batteryIcon(battery)} width="30" />
 			</span>
 			<div class="summary-text">
-				<span class="title">Battery</span>
+				<span class="title">Availability</span>
 				<span class="status">
-					{batteryStatusLabel(battery)}
-					{#if !isFull}
-						<span class="time-left">· {timeLeftLabel}</span>
-					{/if}
+					{availabilityLabel(battery)}
+					<span class="time-left">· {timeLeftLabel}</span>
 				</span>
 			</div>
 			<span class="level">{battery.level}%</span>
@@ -57,6 +61,8 @@
 			<div class="level-fill" style:width="{battery.level}%"></div>
 		</div>
 
+		<p class="mood">{moodLabel(battery)}</p>
+
 		<dl class="details">
 			{#each details as detail (detail.label)}
 				<div class="detail-row">
@@ -65,6 +71,25 @@
 				</div>
 			{/each}
 		</dl>
+
+		<section class="schedule">
+			<button class="schedule-toggle" aria-expanded={scheduleOpen} onclick={() => (scheduleOpen = !scheduleOpen)}>
+				<Icon icon="mdi:calendar-clock" width="16" />
+				<span>Schedule</span>
+				<span class="chevron" class:open={scheduleOpen}><Icon icon="mdi:chevron-down" width="16" /></span>
+			</button>
+
+			{#if scheduleOpen}
+				<dl class="schedule-list" transition:slide={{ duration: 180 }}>
+					{#each schedule as day (day.label)}
+						<div class="detail-row">
+							<dt>{day.label}</dt>
+							<dd>{day.value}</dd>
+						</div>
+					{/each}
+				</dl>
+			{/if}
+		</section>
 	</div>
 </div>
 
@@ -151,12 +176,19 @@
 		transition: width 0.3s ease;
 	}
 
+	.mood {
+		margin: 0.6rem 1rem 0;
+		color: var(--state-color);
+		font-size: 0.8rem;
+		font-style: italic;
+	}
+
 	.details {
 		display: grid;
-		grid-template-columns: 1fr 1fr;
-		gap: 0.5rem 1.25rem;
+		grid-template-columns: 1fr;
+		gap: 0.45rem;
 		margin: 0;
-		padding: 1rem;
+		padding: 0.9rem 1rem 1rem;
 		font-size: 0.8rem;
 	}
 
@@ -181,6 +213,44 @@
 		letter-spacing: normal;
 	}
 
+	.schedule {
+		border-top: 1px solid color-mix(in srgb, var(--foreground) 12%, transparent);
+	}
+
+	.schedule-toggle {
+		display: flex;
+		align-items: center;
+		gap: 0.45rem;
+		width: 100%;
+		padding: 0.6rem 1rem;
+		background: none;
+		border: none;
+		color: var(--foreground);
+		font-size: 0.8rem;
+	}
+
+	.schedule-toggle:hover {
+		color: var(--accent);
+	}
+
+	.chevron {
+		display: grid;
+		margin-left: auto;
+		transition: transform 0.2s ease;
+	}
+
+	.chevron.open {
+		transform: rotate(180deg);
+	}
+
+	.schedule-list {
+		display: grid;
+		gap: 0.45rem;
+		margin: 0;
+		padding: 0 1rem 0.9rem;
+		font-size: 0.8rem;
+	}
+
 	@media (max-width: 640px) {
 		.popover {
 			position: fixed;
@@ -189,9 +259,5 @@
 			left: 8px;
 			width: auto;
 		}
-
-		.details {
-			grid-template-columns: 1fr;
-		}
 	}
 </style>
diff --git a/src/lib/desktop/battery.ts b/src/lib/desktop/battery.ts
index b383cd1..834d6d8 100644
--- a/src/lib/desktop/battery.ts
+++ b/src/lib/desktop/battery.ts
@@ -1,53 +1,100 @@
-const minute = 60 * 1000;
-const hour = 60 * minute;
-const dayDuration = 24 * hour;
-const dischargeDuration = 5 * hour;
-const chargeDuration = 1 * hour;
-const cycleDuration = dischargeDuration + chargeDuration;
-const cycleCountStart = Date.UTC(2025, 10, 21);
+const timeZone = 'America/New_York';
+const timeZoneLabel = 'ET';
+const minutesPerDay = 24 * 60;
+const lowestLevel = 5;
+const weekendDays = new Set([0, 6]);
 
-export const batteryCapacityWh = 42;
+interface ActiveHours {
+	startMinute: number;
+	endMinute: number;
+}
+
+const weekdayHours: ActiveHours = { startMinute: 9 * 60, endMinute: 19 * 60 };
+const weekendHours: ActiveHours = { startMinute: 11 * 60, endMinute: 20 * 60 };
 
 export interface BatteryState {
 	level: number;
 	charging: boolean;
 	minutesRemaining: number;
-	chargeCycles: number;
+	localTime: string;
+	offlineAt: string;
+	backOnlineAt: string;
 }
 
-function easternWallClockMs(date: Date): number {
+function easternClock(date: Date): { minuteOfDay: number; dayOfWeek: number } {
 	const parts = new Intl.DateTimeFormat('en-US', {
-		timeZone: 'America/New_York',
+		timeZone,
 		year: 'numeric',
 		month: '2-digit',
 		day: '2-digit',
 		hour: '2-digit',
 		minute: '2-digit',
-		second: '2-digit',
 		hourCycle: 'h23'
 	}).formatToParts(date);
 	const part = (type: string) => Number(parts.find((item) => item.type === type)?.value);
-	return Date.UTC(part('year'), part('month') - 1, part('day'), part('hour'), part('minute'), part('second'));
+	const wallClockMs = Date.UTC(part('year'), part('month') - 1, part('day'), part('hour'), part('minute'));
+	return {
+		minuteOfDay: part('hour') * 60 + part('minute'),
+		dayOfWeek: new Date(wallClockMs).getUTCDay()
+	};
+}
+
+function hoursForDay(dayOfWeek: number): ActiveHours {
+	return weekendDays.has((dayOfWeek + 7) % 7) ? weekendHours : weekdayHours;
+}
+
+function formatClockTime(minuteOfDay: number): string {
+	const hours = Math.floor(minuteOfDay / 60);
+	const minutes = minuteOfDay % 60;
+	const period = hours < 12 ? 'AM' : 'PM';
+	const displayHour = hours % 12 || 12;
+	return minutes === 0 ? `${displayHour} ${period}` : `${displayHour}:${minutes.toString().padStart(2, '0')} ${period}`;
+}
+
+function formatHours({ startMinute, endMinute }: ActiveHours): string {
+	return `${formatClockTime(startMinute)} – ${formatClockTime(endMinute)} ${timeZoneLabel}`;
+}
+
+export const weekdayHoursLabel = formatHours(weekdayHours);
+export const weekendHoursLabel = formatHours(weekendHours);
+
+function chargeLevel(minutesCharging: number, chargeDuration: number): number {
+	return Math.round(lowestLevel + (minutesCharging / chargeDuration) * (100 - lowestLevel));
 }
 
 export function batteryAt(date: Date): BatteryState {
-	const wallClock = easternWallClockMs(date);
-	const position = wallClock % cycleDuration;
-	const chargeCycles = Math.floor((wallClock - cycleCountStart) / dayDuration);
+	const { minuteOfDay, dayOfWeek } = easternClock(date);
+	const today = hoursForDay(dayOfWeek);
+	const yesterday = hoursForDay(dayOfWeek - 1);
+	const tomorrow = hoursForDay(dayOfWeek + 1);
+	const localTime = `${formatClockTime(minuteOfDay)} ${timeZoneLabel}`;
+	const offlineAt = `${formatClockTime(today.endMinute)} ${timeZoneLabel}`;
 
-	if (position < dischargeDuration) {
+	if (minuteOfDay >= today.startMinute && minuteOfDay < today.endMinute) {
+		const activeDuration = today.endMinute - today.startMinute;
+		const minutesActive = minuteOfDay - today.startMinute;
 		return {
-			level: Math.round(100 - (position / dischargeDuration) * 100),
+			level: Math.round(100 - (minutesActive / activeDuration) * (100 - lowestLevel)),
 			charging: false,
-			minutesRemaining: Math.round((dischargeDuration - position) / minute),
-			chargeCycles
+			minutesRemaining: today.endMinute - minuteOfDay,
+			localTime,
+			offlineAt,
+			backOnlineAt: `${formatClockTime(tomorrow.startMinute)} ${timeZoneLabel}`
 		};
 	}
+
+	const beforeToday = minuteOfDay < today.startMinute;
+	const chargeStart = beforeToday ? yesterday.endMinute - minutesPerDay : today.endMinute;
+	const chargeEnd = beforeToday ? today.startMinute : minutesPerDay + tomorrow.startMinute;
+	const nextStart = beforeToday ? today.startMinute : tomorrow.startMinute;
+
 	return {
-		level: Math.round(((position - dischargeDuration) / chargeDuration) * 100),
+		level: chargeLevel(minuteOfDay - chargeStart, chargeEnd - chargeStart),
 		charging: true,
-		minutesRemaining: Math.round((cycleDuration - position) / minute),
-		chargeCycles
+		minutesRemaining: chargeEnd - minuteOfDay,
+		localTime,
+		offlineAt,
+		backOnlineAt: `${formatClockTime(nextStart)} ${timeZoneLabel}`
 	};
 }
 
@@ -61,31 +108,24 @@ export function batteryIcon({ level, charging }: BatteryState): string {
 	return 'mdi:battery-alert';
 }
 
-export function isBatteryFull({ level }: BatteryState): boolean {
-	return level >= 100;
-}
-
 export function isBatteryLow({ level, charging }: BatteryState): boolean {
 	return level < 20 && !charging;
 }
 
-export function batteryStatusLabel(battery: BatteryState): string {
-	if (isBatteryFull(battery)) return 'Fully charged';
-	return battery.charging ? 'Charging' : 'Discharging';
+export function availabilityLabel({ charging }: BatteryState): string {
+	return charging ? 'Offline · recharging' : 'Available';
 }
 
-export function batteryHealth({ chargeCycles }: BatteryState): number {
-	return Math.max(80, 100 - Math.round(chargeCycles / 40));
-}
-
-export function powerRateLabel({ charging }: BatteryState): string {
-	const durationInHours = (charging ? chargeDuration : dischargeDuration) / hour;
-	const watts = (batteryCapacityWh / durationInHours).toFixed(1);
-	return charging ? `+${watts}W` : `-${watts}W`;
+export function moodLabel({ level, charging }: BatteryState): string {
+	if (charging) return level > 70 ? 'Almost rebooted, coffee is brewing' : 'Asleep, recharging the brain cells';
+	if (level > 75) return 'Fully caffeinated and ready to build';
+	if (level > 45) return 'Running smoothly';
+	if (level > 20) return 'Could use another coffee';
+	return 'Running on fumes, wrapping up for the day';
 }
 
 export function formatDuration(totalMinutes: number): string {
 	const hours = Math.floor(totalMinutes / 60);
 	const minutes = totalMinutes % 60;
 	return hours > 0 ? `${hours}h ${minutes}m` : `${minutes}m`;
-}
\ No newline at end of file
+}