A dead phone in the backcountry means no navigation, no camera, no emergency texts. Keeping your devices charged off-grid is part safety, part convenience — and the right tool depends entirely on whether you’re carrying it on your back or in your trunk. Here’s the best portable power for both.
10,000 mAh at just ~5.3 oz — the best power-to-weight ratio in a power bank, period.
Check Price on Amazon →What You Actually Need to Know
- Capacity (mAh): how much charge it holds. ~10,000 mAh ≈ 2 phone charges; ~20,000 mAh ≈ 4. (You never get the rated capacity — figure ~70% real-world after conversion loss.)
- Weight vs. capacity: the backpacker’s trade-off. ~10,000 mAh (~5–7 oz) is the sweet spot; bigger banks weigh more.
- Output & ports: look for USB-C Power Delivery (PD) for fast charging and enough ports for your devices.
- Power stations (Wh): for car camping — big batteries that run lights, fridges, CPAPs, and recharge everything for days.
- Solar: a slow supplement for long trips, not a primary source.
Our Top Picks
| Charger | Capacity | Weight | Price | Best For | Buy |
|---|---|---|---|---|---|
| Nitecore NB10000 | 10,000 mAh | ~5.3 oz | ~$60 | Backpacking | Amazon |
| Anker PowerCore 10000 | 10,000 mAh | ~6.3 oz | ~$25 | Best value | Amazon |
| Anker 737 (PowerCore 24K) | 24,000 mAh | ~1.4 lb | ~$100 | Longer trips / multiple devices | Amazon |
| BigBlue 28W Solar Charger | panel | ~1.3 lb | ~$70 | Solar / off-grid | Amazon |
| Jackery Explorer 300 | 293 Wh | ~7 lb | ~$200 | Car camping base camp | Amazon |
1. Nitecore NB10000 — Best for Backpacking
Capacity: 10,000 mAh | Weight: ~5.3 oz | Price: ~$60
The NB10000 is the backpacker’s power bank. A carbon-fiber shell makes it the lightest 10,000 mAh bank you can buy at ~5.3 oz, it has USB-C PD in/out for fast charging, and it just works. Two full phone charges (or top up your phone, headlamp, and satellite communicator) for almost no weight penalty. It’s the one most thru-hikers carry.
2. Anker PowerCore 10000 — Best Value
Capacity: 10,000 mAh | Weight: ~6.3 oz | Price: ~$25
If you don’t want to spend $60, the Anker PowerCore 10000 delivers the same capacity for less than half the price at a tiny weight penalty. Anker’s reliability is excellent, and for casual backpackers and campers it’s all the power bank you need. The smart-money pick.
3. Anker 737 (PowerCore 24K) — Best for Longer Trips
Capacity: 24,000 mAh | Weight: ~1.4 lb | Price: ~$100
For longer trips, groups, or charging power-hungry devices (tablets, cameras, a GPS unit), the Anker 737 packs ~4+ phone charges and high-wattage USB-C PD that can even top up a laptop. Heavy for solo ultralight use, but the right call when you genuinely need more juice between resupplies.
4. BigBlue 28W Solar Charger — Best Solar / Off-Grid
Type: Foldable solar panel | Weight: ~1.3 lb | Price: ~$70
For extended off-grid trips, a foldable solar panel keeps your power bank topped up between sunny days. The BigBlue’s multiple panels and USB outputs charge well in direct sun (key word — clip it to your pack or, better, set it out at camp). Treat it as a supplement to a power bank, not a replacement, and your power worries disappear on long trips.
5. Jackery Explorer 300 — Best for Car Camping Base Camp
Capacity: 293 Wh | Weight: ~7 lb | Price: ~$200
When you’re base camping from the car, a power station changes the game. The Jackery Explorer 300 runs string lights, a cooler/fridge, a CPAP, fans, and recharges phones for days, with AC outlets, USB-C, and a car port. Pair it with a solar panel for unlimited off-grid power. Step up to the EcoFlow River 2 or a bigger Jackery for fridges and longer stays.
Backpacking vs. Car Camping: Which Do You Need?
- Backpacking: a 10,000 mAh power bank (Nitecore or Anker) covers most trips. Add solar only for long thru-hikes.
- Car camping / base camp: a power station (Jackery/EcoFlow) runs your whole campsite for days.
- Both: many people carry a small power bank and keep a station in the car.
Power-Saving Tips
- Start at 100% — charge every device fully before the trip.
- Use airplane mode — searching for signal is the #1 battery drain; it can double or triple your phone’s life.
- Keep electronics warm in the cold — batteries drain fast in low temps; sleep with your phone and power bank in your bag (see cold-weather tips).
- Bring a short, quality USB-C cable and know which devices take priority (navigation and emergency comms first).
The Bottom Line
- Backpacking: Nitecore NB10000 — unbeatable power-to-weight
- Best value: Anker PowerCore 10000 — same capacity, half the price
- Longer trips: Anker 737 — more juice for groups and big devices
- Solar: BigBlue 28W — supplement for long off-grid trips
- Car camping: Jackery Explorer 300 — run your whole base camp
Match the tool to the trip, charge up before you leave, and your devices (and your safety net) stay alive in the backcountry.
Related Guides
- Best Satellite Communicators
- Best Navigation Tools for the Backcountry
- Car Camping Checklist: The Perfect Base Camp
- Best Headlamps for Backpacking
Keep the power on. Keep exploring.
Frequently Asked Questions
What size power bank do I need for backpacking?
How many phone charges do you get from a 10,000 mAh power bank?
Do solar chargers work for backpacking?
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