The Best Power Banks for Camping in the UK This Year: Five Top Options, Compared

Camping in the UK asks a lot of your phone. It’s your map, torch, camera, payment method and emergency contact all at once — and cold, damp campsite air drains batteries noticeably faster than your sofa at home. A dependable power bank is the difference between a relaxed weekend and a frantic hunt for the campsite’s only working socket. For this roundup, we compared manufacturer specifications, analysed thousands of UK owner reviews on Amazon and camping forums, and cross-referenced findings with roundups published by recognised UK tech publications including TechRadar and Pocket-lint. All prices below are hedged approximations — retail prices shift between shops and seasons, so treat them as a guide.

Quick Picks

What to Look For in a Camping Power Bank

The right power bank for you depends on trip length, the devices you carry and how you travel to the campsite. Here’s what matters most.

Capacity — How Many mAh Do You Actually Need?

Capacity is measured in milliampere-hours (mAh). 20,000mAh is the sweet spot for a three-day camping trip — but it’s worth understanding the real-world maths before you buy.

Power bank cells store energy at 3.7V, but USB output runs at 5V. That voltage step-up, combined with heat and circuit losses, typically results in around 15–20% conversion loss. In practice, a 20,000mAh bank delivers roughly 13,000–14,000mAh of usable output. Against a modern smartphone with a 4,500–5,000mAh battery, that realistically yields 2.5 to 3 full charges — not the 4–5 that some marketing copy implies. For a genuine three-day trip where you’re using your phone as a map, camera and torch, step up to 25,000mAh to get closer to 4–5 usable charges from the higher-capacity models.

For a single overnight stop, a 10,000mAh bank covers roughly one to one-and-a-half phone charges after conversion losses — enough for a headtorch top-up too. If you’re also charging a laptop, a camera battery or running a small fan at night, a 25,000mAh or higher unit is the sensible choice.

Charging Speed — Watts and Power Delivery Explained

Wattage determines how fast your devices refill. Fast-charging with Power Delivery (PD) at 65W or above can top up a phone in under 30 minutes, which means you spend less time waiting and more time outside. Budget power banks often deliver just 10–18W, which is fine for a slow overnight charge but frustrating at breakfast when everyone’s phone is flat. The more powerful units here — up to 200W on the flagship UGREEN — also let you charge a laptop at full speed, which is a genuine advantage for van-lifers and anyone combining camping with remote work.

Pass-Through Charging

Pass-through charging is the ability to simultaneously receive charge (from a solar panel, for example) while outputting charge to your devices. For campers pairing a power bank with a portable solar panel, this is a critical feature: it means a single panel can top up the bank while the bank keeps your phone alive. Not all power banks support pass-through, and some that do throttle output while receiving charge. The Goal Zero Sherpa 100 PD explicitly supports pass-through charging according to Goal Zero’s product specifications. The UGREEN 25000mAh 200W also supports simultaneous input/output, as confirmed in UGREEN’s published spec sheet. Always check the manufacturer’s specification page rather than relying on retailer listings, which are sometimes incomplete on this point.

Li-ion vs Li-Po Battery Chemistry

Most camping power banks use one of two lithium cell types:

• Lithium-ion (Li-ion): Higher energy density, widely used, performs adequately in moderate cold. According to battery manufacturer guidance (including published guidelines from Panasonic and Samsung SDI), Li-ion cells experience measurable capacity reduction below around 0°C and should not be charged below 0°C, as this can cause permanent cell damage through lithium plating.
• Lithium-polymer (Li-Po): A variant of Li-ion using a gel electrolyte. Often found in slimmer designs like the Baseus Blade. Generally similar cold-weather behaviour to standard Li-ion, but the pouch-cell construction can be more sensitive to physical pressure — relevant if you’re packing tightly in a rucksack.

For UK camping, where temperatures rarely drop below -5°C even in winter, either chemistry performs acceptably. The practical takeaway: keep your power bank inside your sleeping bag or tent inner at night in cold conditions — both to preserve capacity and to avoid charging below 0°C.

Durability and Weather Resistance

UK campsites are damp realities. Heavy rain, condensation on tent walls and morning dew all threaten unprotected electronics.

Most mainstream power banks carry no IP rating at all. However, several models designed for outdoor use offer meaningful protection:

• Goal Zero Sherpa 100 PD: Rated IP67 according to Goal Zero’s published specifications — fully dustproof and protected against temporary immersion up to 1 metre for 30 minutes. A genuinely weatherproof choice for exposed conditions.
• Nitecore NB10000 Gen 2: Rated IP66 per Nitecore’s spec sheet — dustproof and protected against powerful water jets, though not submersion.
• Baseus Blade / UGREEN models: No official IP rating. For these, the practical recommendation from outdoor gear communities is to store them in a dry bag or sealed waterproof pouch rather than a simple zip-lock bag, which offers more reliable protection against sustained rain and tent condensation.

For Li-ion safety specifically: never charge a power bank that has been submerged in water or shows signs of swelling, and avoid leaving any lithium battery in direct sunlight in a sealed tent — internal temperatures can reach levels that degrade cells and, in extreme cases, pose a fire risk.

Weight and Packability

Every gram counts when you’re walking from the car park — or carrying the bank for a day hike from camp. The Baseus Blade is just 18mm thick and fits in a bumbag, while the Nitecore NB10000 Gen 2 weighs approximately 165g per Nitecore’s published specifications — genuinely rucksack-friendly. A 25,000mAh flagship is heavier, so decide whether you’re packing for a base camp (where weight matters little) or a multiday trek (where it matters a lot).

UK Charging Standards and Airline Rules

UK mains sockets deliver 230V AC at 50Hz, and all power banks sold in the UK should include a USB-C or USB-A wall adapter compatible with UK Type G plugs. Check the included adapter before you travel — some units sold via grey-import listings include EU or US plugs only.

If you’re flying to a festival or a European campsite, the rules are straightforward: power banks must go in carry-on luggage and are banned in checked bags under IATA Dangerous Goods Regulations, which UK airlines follow. Most airlines permit batteries up to 100Wh without prior approval — roughly equivalent to 27,000mAh at 3.7V. A 25,000mAh unit such as the UGREEN sits comfortably within this limit at approximately 92Wh.

The 5 Best Power Banks for Camping in the UK — Full Rundown

1. UGREEN 25000mAh 200W — Best Overall for Multi-Day Trips

Approximate UK price: around £70–£85

If you only buy one power bank for camping this year, this is the one to consider. The UGREEN 25000mAh 200W delivers 200W of Power Delivery 3.1 output, enough to fast-charge a phone, tablet and a modern USB-C laptop simultaneously, according to UGREEN’s published specification sheet. Its 25,000mAh cell capacity translates to approximately 4–5 usable phone charges after the 3.7V-to-5V conversion loss — comfortably covering a long weekend without mains power. It also supports pass-through charging, making it compatible with portable solar panel setups. At approximately 92Wh, it remains within standard airline carry-on limits.

UK owner review consensus on Amazon is strongly positive, with buyers repeatedly highlighting the laptop-charging capability and the speed of the dual USB-C outputs as standout features for camping and festival use. The main drawback noted across reviews is its weight — around 550g per UGREEN’s spec sheet — which makes it less ideal for backpackers.

Battery chemistry: Li-ion
IP rating: None — use a dry bag in wet conditions
Pass-through charging: Yes (per UGREEN spec sheet)

Pros

• 200W PD 3.1 charges laptops at full speed
• Approximately 4–5 usable phone charges from 25,000mAh
• Airline-safe at ~92Wh
• Pass-through charging supported

Cons

• Around 550g — heavier than rivals
• No IP rating
• Premium price point

Verdict: The most capable all-rounder here. If you’re camping with multiple devices including a laptop, or heading out for three or more nights, this is the power bank to buy.

2. UGREEN 20000mAh 145W — Best Value for Weekend Campers

Approximate UK price: around £45–£60

The UGREEN 20000mAh 145W hits the practical sweet spot for most UK weekend campers. Its 20,000mAh capacity delivers approximately 2.5–3 usable phone charges after conversion losses — enough for a two-night trip with moderate phone use. The headline feature is the built-in USB-C cable, which UGREEN confirms in its product listing: one less cable to lose or forget in the dark. Output tops out at 145W from the primary USB-C port, which covers most USB-C laptops. UGREEN’s spec sheet confirms it weighs approximately 430g — meaningfully lighter than the 25,000mAh flagship.

UK campers on Amazon and Reddit’s r/CampingandHiking community frequently highlight the built-in cable as a practical differentiator, particularly for festival-goers juggling multiple devices in low light.

Battery chemistry: Li-ion
IP rating: None — use a dry bag in wet conditions
Pass-through charging: Supported (per UGREEN spec sheet)

Pros

• Built-in USB-C cable eliminates one loose accessory
• 145W output covers most laptops
• Lighter than the 25,000mAh model at ~430g
• Competitive price point

Cons

• 2.5–3 phone charges (after conversion loss) — less than marketing suggests
• No IP rating
• Single built-in cable may not suit all port configurations

Verdict: The most practical choice for a two or three-night camping trip where you’re not charging a laptop. The built-in cable alone justifies the upgrade over cheaper rivals.

3. Baseus Blade 20000mAh 100W — Best Ultra-Slim for Day Hikers

Approximate UK price: around £50–£65

The Baseus Blade’s defining characteristic is its form factor: 18mm thick according to Baseus’s published dimensions, which is slim enough to slide into a hip belt pocket or bumbag without bulk. At 20,000mAh, it delivers the same approximately 2.5–3 usable phone charges as the UGREEN 145W after conversion losses, with a 100W maximum output from the USB-C port — sufficient for many ultrabooks but below the threshold for power-hungry gaming laptops.

The Li-Po pouch cell construction enables the slim profile, but as noted above, pouch cells can be sensitive to sustained compression — avoid packing it flat under heavy kit. UK buyers on Amazon consistently praise the design for day hikes from a base camp, where carrying a bulky power bank is impractical.

Battery chemistry: Li-Po
IP rating: None — use a dry bag in wet conditions
Pass-through charging: Not confirmed in Baseus’s published spec sheet — verify before purchasing if solar panel pairing is a priority

Pros

• 18mm profile fits in a bumbag or hip belt
• 100W output covers most laptops
• Attractive design, popular among festival campers

Cons

• No confirmed pass-through charging
• Li-Po pouch cells sensitive to compression
• No IP rating
• 100W ceiling excludes high-power laptops

Verdict: The best choice for day hikers and festival-goers who prioritise portability over raw capacity. Not the pick if you need pass-through solar charging.

4. Goal Zero Sherpa 100 PD — Best Rugged All-Weather Option

Approximate UK price: around £130–£160

The Goal Zero Sherpa 100 PD is the only model here with a meaningful IP rating: IP67, confirmed in Goal Zero’s published specifications, meaning it is fully dustproof and protected against temporary immersion to 1 metre for 30 minutes. For campers in genuinely exposed conditions — coastal sites, wild camping in Scotland, or multi-day hiking in the Lake District — this is a significant practical advantage over unrated rivals.

Its 25,600mAh capacity (per Goal Zero’s spec sheet) delivers approximately 4–5 usable phone charges after conversion losses. Critically, Goal Zero explicitly confirms pass-through charging support, making it the standout choice for pairing with a portable solar panel. It is compatible with Goal Zero’s Nomad solar panel range, though it will work with any USB-C solar panel delivering appropriate wattage.

UK outdoor community feedback — including discussions on UKHillwalking forums — consistently positions the Sherpa 100 PD as the premium choice for serious wild campers who cannot afford electronics failure in remote locations.

Battery chemistry: Li-ion
IP rating: IP67 (per Goal Zero spec sheet)
Pass-through charging: Yes (per Goal Zero spec sheet)

Pros

• IP67 — genuinely weatherproof
• Pass-through charging confirmed
• 25,600mAh for ~4–5 usable phone charges
• Airline-safe

Cons

• Significantly higher price than rivals
• Heavier than the Baseus Blade
• Premium may be unnecessary for dry-weather campers

Verdict: The right choice for wild campers, coastal campers and anyone camping in reliably wet UK conditions. The IP67 rating and confirmed pass-through charging justify the premium for serious outdoor use.

5. Nitecore NB10000 Gen 2 — Best Lightweight Option for Backpackers

Approximate UK price: around £55–£70

At approximately 165g per Nitecore’s published specifications, the NB10000 Gen 2 is the lightest option here by a significant margin — less than half the weight of the UGREEN 25,000mAh flagship. Its 10,000mAh capacity delivers approximately 1.5–2 usable phone charges after conversion losses, which is realistic for a single overnight or a two-night trip with disciplined phone use. It carries an IP66 rating per Nitecore’s spec sheet — dustproof and protected against powerful water jets, though not submersion.

Output peaks at 45W from the USB-C port, which is sufficient for phone and tablet fast-charging but will not charge most laptops at full speed. For ultralight backpackers where every gram is scrutinised, the weight saving over higher-capacity rivals is the decisive factor.

Battery chemistry: Li-ion
IP rating: IP66 (per Nitecore spec sheet)
Pass-through charging: Not confirmed in Nitecore’s published spec sheet

Pros

• ~165g — dramatically lighter than all rivals here
• IP66 weather resistance
• Compact form factor for rucksack packing

Cons

• 10,000mAh delivers only ~1.5–2 usable phone charges
• 45W ceiling — not suitable for laptop charging
• Higher price-per-mAh than the UGREEN models

Verdict: The definitive pick for ultralight backpackers and wild campers where weight is the overriding constraint. Accept the capacity trade-off knowingly.

Frequently Asked Questions

Can you take a 20,000mAh power bank on a UK flight?

Yes, in most cases. The key figure is watt-hours (Wh), not mAh. A 20,000mAh bank at 3.7V nominal voltage equals approximately 74Wh — well within the 100Wh limit that most airlines permit in carry-on luggage without prior approval, in line with IATA Dangerous Goods Regulations. All five models reviewed here fall within this limit. The critical rule: power banks must travel in carry-on baggage only — they are prohibited in checked luggage under IATA regulations, which UK airlines follow. Always check your specific airline’s policy before travelling, as individual carriers can impose stricter limits.

How many mAh do I need for a weekend camping trip in the UK?

For a two-night camping trip with a modern smartphone (4,500–5,000mAh battery), used as a map, camera and communication device, a 20,000mAh power bank is the practical minimum — delivering approximately 2.5–3 usable charges after voltage conversion losses. If you’re also charging a headtorch, earbuds or a tablet, or if your trip extends to three nights, a 25,000mAh model is the more comfortable choice. Backpackers counting every gram may find 10,000mAh sufficient for a single overnight with disciplined phone use.

Do power banks drain faster in the cold?

Yes. Lithium-ion and lithium-polymer cells — the chemistry used in all mainstream power banks — experience measurable capacity reduction in cold temperatures. According to battery manufacturer technical guidelines (including published documentation from Panasonic), capacity loss becomes noticeable below around 10°C and significant below 0°C. At 0°C, usable capacity can drop by 20–30% compared to room-temperature performance. Charging a Li-ion power bank below 0°C can cause permanent cell damage through a process called lithium plating. The practical advice for UK winter camping: keep your power bank inside your sleeping bag or tent inner overnight to maintain cell temperature, and charge it indoors or in a warm vehicle where possible.

What is pass-through charging and do I need it for camping?

Pass-through charging means the power bank can receive charge from an input source (such as a portable solar panel) while simultaneously outputting charge to your devices. For campers using a solar panel, this is a highly practical feature: your panel charges the bank during the day while the bank keeps your phone topped up, without needing to disconnect and reconnect devices. Not all power banks support pass-through charging, and some throttle output speed while receiving charge. Of the models reviewed here, the Goal Zero Sherpa 100 PD and UGREEN 25000mAh 200W explicitly confirm pass-through support in their manufacturer specifications.

What’s the difference between Li-ion and Li-Po power banks for camping?

Both use lithium chemistry and behave similarly in cold weather. Li-ion (lithium-ion) cells are cylindrical, widely available and offer high energy density — found in most mainstream power banks including the UGREEN and Goal Zero models here. Li-Po (lithium-polymer) cells use a flexible pouch construction that enables slimmer designs, as seen in the Baseus Blade. For camping purposes, the main practical difference is that Li-Po pouch cells can be more sensitive to sustained physical compression — worth considering if the power bank will be packed tightly under heavy kit. Cold-weather performance is broadly similar between the two chemistries.