Portable Power Banks: What Every Motorhome Traveller Needs

Going on a road trip in a motorhome means you’ll be away from the grid for days. Your phone, GPS, lights and maybe a small TV all need juice. That’s where a portable power bank becomes a lifesaver. It’s basically a big, rechargeable battery you can plug anything into, and it fits in the cup holder or a drawer.

Choosing the Right Power Bank for the Road

First, think about how much power you actually need. A 10,000 mAh bank can give a smartphone about three full charges. If you also want to run a tablet, a Bluetooth speaker or a 12‑volt LED lamp, aim for 20,000 mAh or more. Look for a model with both USB‑A and USB‑C ports – USB‑C charges faster and can even power some small laptops.

Weight matters too. A 20,000 mAh unit can weigh around 400 g, which is fine for a motorhome where you have space. Avoid the ultra‑heavy ones that are meant for full‑size appliances unless you plan to run a fridge or heater off them – that’s usually a no‑go.

How to Use a Power Bank Safely While Boondocking

When you’re parked in a remote spot, you’ll probably be using the motorhome’s 12‑volt system to charge the bank. Plug the power bank into a USB socket or a cigarette‑lighter adapter, then let it fill up while you drive or while the engine is running. Keep an eye on the indicator lights – most banks stop charging when they reach 100 % to protect the cells.

Don’t let the bank sit empty for weeks. A quick top‑up every month keeps the battery chemistry healthy. And always store it in a cool, dry place inside the vehicle; extreme heat can shrink the lifespan.

If you plan to use the power bank for a 12‑volt TV or other low‑power devices, check the output rating. A 5‑volt, 2‑amp port is fine for phones, but a 12‑volt TV will need a 12‑V DC output or a step‑up converter. Using the wrong voltage can damage both the bank and your gear.

One smart trick is to pair the power bank with a solar panel. Many panels have a USB port, so you can attach the bank directly and let the sun charge it while you’re out exploring. It adds a layer of independence, especially when you’re boondocking in places like the Scottish Highlands or a quiet forest in Wisconsin.

Finally, keep a backup charger cable in the van. Cables get lost or frayed, and you don’t want to be stuck with a full bank and no way to plug anything in. A short, sturdy cable is easier to store and less likely to tangle.

With the right portable power bank, you’ll never have to worry about a dead phone in the middle of a scenic route. It’s a small investment that pays off in peace of mind and keeps your road‑trip memories alive – literally.