diff --git a/app.py b/app.py
index 0f490d3..3c6246c 100644
--- a/app.py
+++ b/app.py
@@ -76,17 +76,38 @@ def create_app(config_object="config"):
         ]
         devices = db.query(Device).order_by(Device.name).all()
         devices_with_slots = [d for d in devices if d.installed_count() < d.battery_slots]
-        one_year_ago = (date.today() - timedelta(days=365)).isoformat()
+        today = date.today()
+        one_year_ago = (today - timedelta(days=365)).isoformat()
         total_charges = db.query(func.count(ChargeLog.id)).scalar() or 0
         charges_last_year = (db.query(func.count(ChargeLog.id))
                              .filter(ChargeLog.charged_date >= one_year_ago)
                              .scalar()) or 0
+        last_charged_map = {
+            r[0]: r[1]
+            for r in db.query(ChargeLog.battery_id, func.max(ChargeLog.charged_date))
+            .group_by(ChargeLog.battery_id).all()
+        }
+        active = [b for b in batteries if b.status in ("available", "installed")]
+        needs_attention = {
+            "low_capacity": [
+                b for b in active
+                if b.tested_capacity_mah and b.capacity_mah
+                and b.tested_capacity_mah < 0.8 * b.capacity_mah
+            ],
+            "low_pct": [
+                b for b in batteries
+                if b.battery_percentage is not None and b.battery_percentage < 20
+            ] if ha_client.enabled else [],
+        }
         return render_template("dashboard.html", batteries=batteries,
                                storage_locations=storage_locations, devices=devices,
                                devices_with_slots=devices_with_slots,
                                ha_enabled=ha_client.enabled,
                                total_charges=total_charges,
-                               charges_last_year=charges_last_year)
+                               charges_last_year=charges_last_year,
+                               last_charged_map=last_charged_map,
+                               needs_attention=needs_attention,
+                               today=today)
 
     # ------------------------------------------------------------------ #
     # Battery — add
diff --git a/templates/dashboard.html b/templates/dashboard.html
index 18fe9ee..c08c727 100644
--- a/templates/dashboard.html
+++ b/templates/dashboard.html
@@ -44,12 +44,49 @@
 </div>
 {% endif %}
 
+{% set na_low_cap = needs_attention.low_capacity %}
+{% set na_low_pct = needs_attention.low_pct %}
+{% if na_low_cap or na_low_pct %}
+<details class="card" style="margin-bottom:1rem;">
+  <summary style="cursor:pointer;font-weight:600;color:var(--text-warning);list-style:none;display:flex;align-items:center;gap:0.5rem;">
+    <span>&#9888;</span>
+    <span>Needs Attention &nbsp;<span class="badge badge-warning">{{ (na_low_cap|length) + (na_low_pct|length) }}</span></span>
+  </summary>
+  <div style="margin-top:0.75rem;display:flex;flex-wrap:wrap;gap:1.5rem;">
+    {% if na_low_cap %}
+    <div>
+      <div style="font-size:0.75rem;font-weight:600;color:var(--text-muted);text-transform:uppercase;letter-spacing:.05em;margin-bottom:0.4rem;">Low Capacity (&lt;80%)</div>
+      {% for b in na_low_cap %}
+      <div style="font-size:0.875rem;margin-bottom:0.25rem;">
+        <a href="{{ url_for('battery_detail', battery_id=b.id) }}">{{ b.label }}</a>
+        <span class="text-muted">— {{ (b.tested_capacity_mah / b.capacity_mah * 100)|int }}% of rated</span>
+      </div>
+      {% endfor %}
+    </div>
+    {% endif %}
+    {% if na_low_pct %}
+    <div>
+      <div style="font-size:0.75rem;font-weight:600;color:var(--text-muted);text-transform:uppercase;letter-spacing:.05em;margin-bottom:0.4rem;">Low Battery %</div>
+      {% for b in na_low_pct %}
+      <div style="font-size:0.875rem;margin-bottom:0.25rem;">
+        <a href="{{ url_for('battery_detail', battery_id=b.id) }}">{{ b.label }}</a>
+        <span class="text-muted">— {{ b.battery_percentage }}%</span>
+      </div>
+      {% endfor %}
+    </div>
+    {% endif %}
+  </div>
+</details>
+{% endif %}
+
 <div class="card">
   <div style="display:flex;justify-content:flex-end;margin-bottom:0.5rem;">
     <div style="position:relative;">
       <button type="button" id="col-picker-btn" class="btn btn-sm btn-secondary">Columns ▾</button>
       <div id="col-picker-panel" style="display:none;position:absolute;right:0;top:calc(100% + 4px);background:#fff;border:1px solid #d1d5db;border-radius:6px;padding:0.75rem 1rem;z-index:100;box-shadow:0 4px 8px rgba(0,0,0,0.1);min-width:180px;">
         <div style="font-weight:600;font-size:0.8rem;color:#64748b;margin-bottom:0.5rem;text-transform:uppercase;letter-spacing:0.05em;">Show columns</div>
+        <label style="display:block;cursor:pointer;margin-bottom:0.3rem;font-size:0.875rem;"><input type="checkbox" data-col="last-charged" onchange="toggleCol(this)" style="margin-right:0.4rem;"> Last Charged</label>
+        <label style="display:block;cursor:pointer;margin-bottom:0.3rem;font-size:0.875rem;"><input type="checkbox" data-col="health" onchange="toggleCol(this)" style="margin-right:0.4rem;"> Health %</label>
         <label style="display:block;cursor:pointer;margin-bottom:0.3rem;font-size:0.875rem;"><input type="checkbox" data-col="chemistry" onchange="toggleCol(this)" style="margin-right:0.4rem;"> Chemistry</label>
         <label style="display:block;cursor:pointer;margin-bottom:0.3rem;font-size:0.875rem;"><input type="checkbox" data-col="capacity" onchange="toggleCol(this)" style="margin-right:0.4rem;"> Capacity</label>
         <label style="display:block;cursor:pointer;margin-bottom:0.3rem;font-size:0.875rem;"><input type="checkbox" data-col="storage" onchange="toggleCol(this)" style="margin-right:0.4rem;"> Storage Location</label>
@@ -159,16 +196,18 @@
         <thead>
           <tr>
             <th style="width:1.5rem;"><input type="checkbox" id="select-all" title="Select all"></th>
-            <th>Label</th>
-            <th>Brand</th>
+            <th data-sortable="label">Label</th>
+            <th data-sortable="brand">Brand</th>
             <th>Size</th>
+            <th class="col-last-charged" style="display:none;" data-sortable="last-charged">Last Charged</th>
+            <th class="col-health" style="display:none;" data-sortable="health">Health</th>
             <th class="col-chemistry" style="display:none;">Chemistry</th>
             <th class="col-capacity" style="display:none;">Capacity</th>
             <th class="col-storage" style="display:none;">Storage</th>
             <th class="col-purchase" style="display:none;">Purchase Date</th>
-            <th class="col-cycles" style="display:none;">Cycles</th>
-            {% if ha_enabled %}<th class="col-ha-pct" style="display:none;">Bat %</th>{% endif %}
-            <th>Status</th>
+            <th class="col-cycles" style="display:none;" data-sortable="cycles">Cycles</th>
+            {% if ha_enabled %}<th class="col-ha-pct" style="display:none;" data-sortable="ha-pct">Bat %</th>{% endif %}
+            <th data-sortable="status">Status</th>
             <th>Assigned To</th>
             <th>Actions</th>
           </tr>
@@ -177,9 +216,19 @@
           {% for b in batteries %}
           <tr data-brand="{{ b.brand }}" data-size="{{ b.size or '' }}" data-status="{{ b.status }}" data-storage="{{ b.storage_location or '' }}">
             <td data-label=""><input type="checkbox" name="battery_ids" value="{{ b.id }}" class="row-cb"></td>
-            <td data-label="Label"><a href="{{ url_for('battery_detail', battery_id=b.id) }}"><strong>{{ b.label }}</strong></a></td>
-            <td data-label="Brand">{{ b.brand }}</td>
+            <td data-label="Label" data-sort-col="label" data-sort="{{ b.label }}"><a href="{{ url_for('battery_detail', battery_id=b.id) }}"><strong>{{ b.label }}</strong></a></td>
+            <td data-label="Brand" data-sort-col="brand" data-sort="{{ b.brand }}">{{ b.brand }}</td>
             <td data-label="Size">{{ b.size or '—' }}</td>
+            <td data-label="Last Charged" class="col-last-charged" style="display:none;"
+                data-sort-col="last-charged" data-sort="{{ last_charged_map.get(b.id, '') }}"
+                data-charged="{{ last_charged_map.get(b.id, '') }}"></td>
+            <td data-label="Health" class="col-health" style="display:none;"
+                data-sort-col="health" data-sort="{% if b.tested_capacity_mah and b.capacity_mah %}{{ (b.tested_capacity_mah / b.capacity_mah * 100)|int }}{% endif %}">
+              {% if b.tested_capacity_mah and b.capacity_mah %}
+                {% set hp = (b.tested_capacity_mah / b.capacity_mah * 100)|int %}
+                <span class="badge {% if hp >= 80 %}badge-available{% elif hp >= 60 %}badge-warning{% else %}badge-retired{% endif %}">{{ hp }}%</span>
+              {% else %}<span class="text-muted">—</span>{% endif %}
+            </td>
             <td data-label="Chemistry" class="col-chemistry" style="display:none;">{{ b.chemistry or '—' }}</td>
             <td data-label="Capacity" class="col-capacity" style="display:none;">
               {% if b.capacity_mah %}
@@ -189,9 +238,11 @@
             </td>
             <td data-label="Storage" class="col-storage" style="display:none;">{{ b.storage_location or '—' }}</td>
             <td data-label="Purchase" class="col-purchase" style="display:none;">{{ b.purchase_date or '—' }}</td>
-            <td data-label="Cycles" class="col-cycles" style="display:none;">{{ b.charge_cycles or '—' }}</td>
+            <td data-label="Cycles" class="col-cycles" style="display:none;"
+                data-sort-col="cycles" data-sort="{{ b.charge_cycles or '' }}">{{ b.charge_cycles or '—' }}</td>
             {% if ha_enabled %}
-            <td data-label="Bat %" class="col-ha-pct" style="display:none;">
+            <td data-label="Bat %" class="col-ha-pct" style="display:none;"
+                data-sort-col="ha-pct" data-sort="{{ b.battery_percentage if b.battery_percentage is not none else '' }}">
               {% if b.battery_percentage is not none %}
                 {% if b.battery_percentage < 20 %}
                   <span class="badge badge-warning" title="Low — consider replacing">⚠ {{ b.battery_percentage }}%</span>
@@ -199,7 +250,7 @@
               {% else %}—{% endif %}
             </td>
             {% endif %}
-            <td data-label="Status">
+            <td data-label="Status" data-sort-col="status" data-sort="{{ b.status }}">
               <span class="badge badge-{{ b.status }}">{{ b.status|capitalize }}</span>
             </td>
             <td data-label="Assigned To">
@@ -215,6 +266,14 @@
             <td data-label="Actions" style="white-space:nowrap;">
               <a class="btn btn-sm btn-secondary" href="{{ url_for('battery_detail', battery_id=b.id) }}">View</a>
 
+              {% if not b.is_retired() %}
+                <form class="inline" method="post" action="{{ url_for('battery_charge_log_add', battery_id=b.id) }}"
+                      title="Log charge for today">
+                  <input type="hidden" name="charged_date" value="{{ today.isoformat() }}">
+                  <button class="btn btn-sm btn-secondary" type="submit">&#10003;</button>
+                </form>
+              {% endif %}
+
               {% if b.is_available() %}
                 <select id="qas-{{ b.id }}"
                         style="padding:0.2rem 0.3rem;font-size:0.8rem;border:1px solid #cbd5e1;border-radius:4px;max-width:110px;vertical-align:middle;">
@@ -385,7 +444,7 @@ updateToolbar();
 
 // Column picker
 var COL_KEY = 'battery_cols';
-var ALL_COLS = ['chemistry','capacity','storage','purchase','cycles'{% if ha_enabled %},'ha-pct'{% endif %}];
+var ALL_COLS = ['last-charged','health','chemistry','capacity','storage','purchase','cycles'{% if ha_enabled %},'ha-pct'{% endif %}];
 
 function toggleCol(cb) {
   var col = cb.dataset.col;
@@ -407,6 +466,75 @@ function toggleCol(cb) {
   });
 }());
 
+// Relative age for "Last Charged" column
+function relAge(dateStr) {
+  if (!dateStr) return {text: 'Never', cls: 'text-danger'};
+  var days = Math.floor((Date.now() - new Date(dateStr + 'T00:00:00')) / 86400000);
+  if (days <= 0) return {text: 'Today', cls: ''};
+  if (days === 1) return {text: 'Yesterday', cls: ''};
+  if (days < 14) return {text: days + ' days ago', cls: ''};
+  if (days < 60) return {text: Math.floor(days / 7) + ' wks ago', cls: days > 30 ? 'text-warning' : ''};
+  if (days < 365) return {text: Math.floor(days / 30) + ' mo ago', cls: days > 180 ? 'text-danger' : 'text-warning'};
+  return {text: Math.floor(days / 365) + ' yr ago', cls: 'text-danger'};
+}
+document.querySelectorAll('td[data-charged]').forEach(function(td) {
+  var r = relAge(td.dataset.charged);
+  td.innerHTML = '<span class="' + r.cls + '">' + r.text + '</span>';
+});
+
+// Sortable columns
+var _sortCol = null, _sortDir = 1;
+var _origOrder = null;
+
+function _captureOrder() {
+  if (!_origOrder) {
+    _origOrder = Array.from(document.querySelectorAll('tbody tr[data-brand]'));
+  }
+}
+
+document.querySelectorAll('th[data-sortable]').forEach(function(th) {
+  th.style.cursor = 'pointer';
+  th.style.userSelect = 'none';
+  var ind = document.createElement('span');
+  ind.className = 'sort-ind';
+  ind.style.fontSize = '0.7rem';
+  th.appendChild(ind);
+  th.addEventListener('click', function() {
+    var col = th.dataset.sortable;
+    if (_sortCol === col) {
+      _sortDir = _sortDir === 1 ? -1 : 0;
+    } else {
+      _sortCol = col; _sortDir = 1;
+    }
+    document.querySelectorAll('th[data-sortable] .sort-ind').forEach(function(s) { s.textContent = ''; });
+    if (_sortDir === 0) {
+      _sortCol = null; _sortDir = 1;
+      _captureOrder();
+      var tbody = document.querySelector('tbody');
+      _origOrder.forEach(function(r) { tbody.appendChild(r); });
+      return;
+    }
+    ind.textContent = _sortDir === 1 ? ' \u25b2' : ' \u25bc';
+    _captureOrder();
+    var tbody = document.querySelector('tbody');
+    var rows = Array.from(tbody.querySelectorAll('tr[data-brand]'));
+    rows.sort(function(a, b) {
+      var at = a.querySelector('td[data-sort-col="' + col + '"]');
+      var bt = b.querySelector('td[data-sort-col="' + col + '"]');
+      var av = at ? (at.dataset.sort || '') : '';
+      var bv = bt ? (bt.dataset.sort || '') : '';
+      // empty values always sort last
+      if (!av && !bv) return 0;
+      if (!av) return 1;
+      if (!bv) return -1;
+      var an = parseFloat(av), bn = parseFloat(bv);
+      if (!isNaN(an) && !isNaN(bn)) return (an - bn) * _sortDir;
+      return av.localeCompare(bv) * _sortDir;
+    });
+    rows.forEach(function(r) { tbody.appendChild(r); });
+  });
+});
+
 document.getElementById('col-picker-btn').addEventListener('click', function(e) {
   var panel = document.getElementById('col-picker-panel');
   panel.style.display = panel.style.display === 'none' ? 'block' : 'none';