Hey {{first_name | there}},

Think about the version of you that shows up at 10am.

You've had your coffee. The inbox is under control. You're sharp, patient, curious. A direct report walks in with a half-baked idea and you don't dismiss it - you ask questions. You find the thing worth saving in it. You give them forty minutes. Good meeting. You leave feeling like the leader you want to be.

Now think about the version of you that walks through the front door at 6:30pm.

The same person. Theoretically.

I've started calling this the Battery Problem. And once you see it, you can't unsee it.

Your energy isn't infinite. You know that. But most of us haven't actually mapped what happens to it across the day, which means we're making the worst possible trade-off without realising it. We give our highest-quality attention to the people we're paid to lead - and there's nothing wrong with that. But without thinking about it, we're handing the leftovers to the people we'd die for.

Here's the rough maths.

You start the day at 100%. By 9am, after the commute and the first rush of messages, you're somewhere around 90%. Two meetings and a difficult conversation before lunch - maybe 70%. The afternoon is its own kind of grind. More decisions, context-switching, an email thread that somehow became a crisis. By 5pm you're hovering around 40%.

And it's not a smooth decline. Jim Loehr's research in The Power of Full Engagement shows that your cognitive energy runs in 90 to 120 minute ultradian cycles - peaks and dips, not a straight downward line. Which means some of those afternoon hours are sharper than others. But here's the problem: almost no-one plans around that. The peaks get absorbed by whatever meeting happens to be in the diary. The dips get filled with more email.

By the time you leave - physically or mentally - you're at maybe 25%. The commute doesn't help. It's not recovery time. It's a mental preview of everything you didn't finish today and need to start tomorrow.

You pull into the driveway at 6:30 on somewhere between 15 and 20%.

That's the version of you your children get. Not the 10am version. Not the sharp, patient, curious version that gave a direct report forty minutes of genuine attention this morning. The 20% version.

And then the house happens.

Your children need dinner. Someone's crying about something that happened at school. There's a homework battle brewing. Your partner has been doing their own version of this all day and needs you to be a functioning human. Bedtime is in two hours and it's already feeling like a sprint.

By the time you sit down - the children finally asleep, the kitchen clean, the lunches packed for tomorrow - you're at 9%.

Nine percent.

That's what's left. For your partner. For any kind of adult conversation. For the relationship that holds the whole thing together. For you.

Your children got you at 20%. Your partner gets you at 9%. Not because you don't love them all. Not because work is more important. But because nobody designed the day any other way, and you've never had a reason to question it.

I want to say something about that before we go further.

The most common thing I hear from people navigating this - usually quietly, sometimes with a fair amount of shame - is some version of: I'm so patient at work. I don't know why I can't bring that home. As if the problem is who they are. As if they're fundamentally more invested in their colleagues than their children.

They're not. You're not.

You're just depleted. The patience didn't disappear. The battery ran out. And it ran out because the day was built to drain it before you got to the part that matters most.

The depletion cycle is an engineering problem. You built a schedule around the wrong unit of measurement. You optimised for time - hours in the day, hours with family, hours at work - and missed the fact that an hour at 10am is worth four hours at 7pm. Same clock time. Completely different person.

Until you account for energy, the schedule will always shortchange the people who matter most.

This is why energy mapping matters. Not a new morning routine. Not a time-blocking system. A map.

Before you change anything, you need to know where you actually are across a typical day. Not where you think you are. Not where you want to be. Where the battery genuinely sits at each hour.

The exercise is simple, but it's surprisingly confronting.

For three days, keep a rough energy log. No app required - a note on your phone is fine. Every hour, on the hour, rate your energy on a scale of 1 to 10. Don't overthink it. Don't justify it. Just note the number and what you were doing.

By day three, you'll have something most people have never had: an honest picture of your energy architecture. Where your peaks are. Where the valley hits. Where the recovery windows are - if any exist.

And most people who do this have a version of the same discovery. Their highest-energy windows - perhaps a 9am to 11am peak, or a second wind around 2pm - are fully committed to professional outputs. Their lowest windows - the 6pm to 8pm corridor - are where they're trying to parent. Not because they chose it. Because that's just how the day got built.

The map doesn't fix that immediately. But it names it. And naming it changes how you see every decision that follows.

Before the next newsletter, there's one thing I want you to do.

Not an overhaul. Not a new system. One thing.

Find your single highest-energy slot this week. Use your map, or your gut - you probably already know when it is. Morning, most likely. Before the day gets its hands on you.

Now give that slot to your family. Once. This week. Thirty minutes, an hour, whatever fits. A walk with your son before school. Breakfast with your partner without your phone on the table. Showing up to something you'd normally reschedule.

You don't need to restructure your calendar. You just need to find out what it feels like when your child gets the 10am version of you instead of the 6:30pm one.

Do it once. Then try going back to the 6:30 version and pretending it's enough.

That’s it for this week. Let me know if this edition rings true for you.

P.S. If you're finding The Parent CEO Playbook useful, please forward this edition to another professional who's trying to bring the same rigour to family life that they bring to their career. The best conversations happen when we stop treating these as separate skill sets.