Our September Discount on Our Fogstar Battery Range
A Sonnie's Adventures exclusive — 10% off for new customers, just in time for the season's power shake-up.
The nights are drawing in, the mornings have that first proper chill to them, and if you're a campervan or motorhome owner, you already know what that means: your power setup is about to work a lot harder for a lot less sunlight.
To help you head into autumn properly prepared, we're running our own exclusive offer this September — 10% off the entire Fogstar Drift battery range, available only through Sonnie's Adventures.
Why lithium batteries matter more once the seasons turn
Summer is forgiving. Long days mean your solar panels are doing most of the heavy lifting, and even a slightly tired leisure battery can usually keep pace. Autumn and winter are a different story.
- Less daylight, less solar input. Shorter days mean fewer hours of charging from your panels, so every bit of stored capacity has to stretch further.
- Heating draws more power. Diesel heaters, fans, electric blankets and extra lighting all pull more from your battery bank than a typical summer trip.
- Cold weather is hard on batteries that aren't built for it. Standard lithium cells can struggle — or refuse to charge altogether — below freezing. Fogstar Drift batteries include built-in low-temperature heating, so charging stays safe and reliable even when the mercury drops.
- Off-grid trips get quieter, not shorter. Many van lifers actually spend more time off-grid in autumn and winter, chasing quieter sites and clearer skies — which means your battery needs to work harder for longer between charges.
In other words: if your battery setup only just scraped through summer, September is exactly the right time to upgrade it — before you're relying on it in a layby in November.
What's included in the offer
The 10% discount applies across our full range of Fogstar Drift batteries — from compact 100Ah units for weekend trips right up to the high-capacity 628Ah PRO Gen2 batteries for serious off-grid setups. Whatever your power needs, there's a Fogstar battery in the range to match, and this September it's simply cheaper to buy it from us.
Every battery ships with Fogstar's full manufacturer warranty and support, our own friendly customer service, and — as always — fast UK dispatch.
Use code FOGSTAR10 at checkout
Whether you're topping up your setup before a winter trip, replacing an ageing lead-acid battery that's never quite kept up, or building your off-grid system from scratch, now's the time to do it — while the discount is live and before the weather really turns.
This is a Sonnie's Adventures promotion, valid exclusively at sonniesadventures.com. Offer applies to new customers on the Fogstar Drift battery range and cannot be redeemed at fogstar.co.uk. While stocks last.