Kindled 20,000mAh Battery Pack — Extended
£21.30
Double the capacity, for full-day cold
20,000mAh — roughly double the runtime of the Standard pack on every setting, for the days you're out longest.
20,000mAh, rated honestly
Roughly 6–8 hours on High, 10–12 on Medium, 16+ on Low — real-world numbers, not best-case marketing figures.
Charge-tested before it ships
Every pack is cycled and checked on the bench first, so "dead on arrival" isn't something you have to worry about.
One connector, every Kindled product
The same magnetic-lock connector as your Jacket, Vest or accessory — no adaptors, no guesswork.
Backed for 12 months
A full year of warranty cover specifically on the battery pack — not just the garment it plugs into.
20,000mAh Rechargeable Cell
Magnetic-Lock Connector
12-Month Battery Warranty
The research
What ruins most spare battery packs
We read the same reviews you would before buying a spare pack. Here's what kept coming up, and what we did differently.
Arrives flat, no way to tell before opening
"Ordered a spare, plugged it in, nothing — turned out it was never charged before it shipped."
Fix: Every pack is charge-tested on the bench before it ships.
Doesn't actually fit the jacket it's sold for
"Generic 'universal' pack, connector was a different shape entirely."
Fix: Built around the exact magnetic-lock connector used on every Kindled product.
Capacity is wildly overstated
"Said 10,000mAh, lasted barely two hours on the lowest setting."
Fix: Runtimes stated per setting from real bench testing, not the optimistic headline number.
No warranty on the pack itself
"Garment had a warranty, the battery it came with didn't — and that's what died."
Fix: 12 months warranty on the battery pack, specifically.
Who this is for
Longer commutes, all-day outdoor work, or anyone who's found the Standard pack running low before their day is done — this is the upgrade path.
Compatibility
Works with the Kindled Heated Jacket, Vest, and every other Kindled product using the standard magnetic-lock connector. Charges via USB-C.
Questions people actually ask
Will this fit my Jacket or Vest?
Yes — it uses the same magnetic-lock connector as every Kindled heated product, so there's nothing to check beforehand.
How long does it actually last?
Roughly 16+ hours on Low, 10–12 on Medium, and 6–8 on High. Cold air slightly reduces battery efficiency, so expect a touch less on the coldest days.
What if it arrives faulty?
Every pack is charge-tested before shipping. If yours still arrives faulty, we replace it — inside 30 days, no back-and-forth.
Is it worth it over the Standard pack?
If you're regularly out for a full day, or don't want to think about charge levels at all, yes — it's roughly double the runtime on every setting for less than double the price.
A full day of warmth, without the recharge.
Free UK shipping
Warranty backed
30-day support
30-Day Money-Back Guarantee
