Duracell 2450 Lithium Coin Batteries 3V (2 pack)- Long life guaranteed - For Use in Key Fobs, Home Devices, Scales, and Temperature Sensors - Baby Secure Packaging - 10-Year In-Storage Guarantee

Excellent cr2016 cells that work as expected. Very good consistent voltage and performance for my fussy keyfob. Very good value multipack. Very happy

Good quality great value for money

Perfect for renewing car keys. Very reasonable price. Fast delivery.

I bought these batteries for my car keys after having repeated issues with a cheaper brand that kept running out after just a couple of months. That was honestly driving me mad, especially when it started affecting the reliability of unlocking the car. I decided to switch to Duracell because of the reputation for quality and so far so good! Fitting the battery was straightforward and once installed the key fob responded immediately without any issues. Since switching everything has been working exactly as it should with consistent performance and no random drop offs or warnings. It gives a bit of peace of mind knowing I am not going to be caught out by a weak battery at an inconvenient time. Overall these feel like a dependable choice for small but important things like car keys. While it is still early days in terms of long term use the battery so far has been solid and reassuring. Based on my experience they are a worthwhile upgrade from cheaper alternatives and well deserving of five stars.

great product, great price

I never thought a humble coin battery would change my life, but here we are. Duracell 2450 Lithium Coin Batteries aren’t just power sources - they’re mischief-makers with a side gig as matchmakers. Let’s start at the beginning: I was expecting a boring unboxing of batteries (you know, the kind where you think why did I even bother reading reviews for this?) but Duracell does posh. The child-proof packaging had me wrestling like I was trying to break into Fort Knox. I briefly considered calling in a locksmith until my dad strolled by and casually sliced it open with a butter knife. Thanks for the ego hit, Dad. Anyway, once I powered up my smart device, I thought, this is brilliant, I’m basically Tony Stark without the charisma. But that’s when things got wild. On a first date (with a swimsuit model - because obviously, women can’t resist a bloke with reliable battery-operated devices ⚡️), my smartwatch went berserk mid-conversation. Why? Because these batteries have stamina that just won’t quit. Unfortunately, my step counter decided it was the perfect time to brag about my “Calories Burned Last Night.” Not ideal dinner banter. "Wow, you're efficient," she said, choking on her wine. Then there was the time I accidentally used these batteries in Mum’s antique clock. Oh, the horror when she blamed the “possessed clock” for waking the entire street at 3 a.m. I had to sit through a lecture about respecting antiques, which—ironically - lasted as long as these batteries (forever, basically). Work didn’t fare much better. My boss, already on thin ice with my "sense of humor," was not amused when my desk gadget buzzed during his Very Important Presentation. “Is that a toy, Ranganathan?” (Spoiler: it wasn’t, but I didn’t argue.) Fired. But hey, at least my desk gadget was still running smoothly when security escorted me out. And if you think pets are immune to the power of Duracell, think again. I popped one of these batteries into my ferret’s LED collar (yes, ferret, don’t judge), and now the neighborhood thinks I have a glow-in-the-dark ghost rodent leading me home at night. One lady screamed and dropped her shopping; the ferret’s still traumatized. Drawbacks? Oh, they last TOO long. You try explaining why your child’s singing toy will not die. I buried that toy in the garden, but thanks to these batteries, I’m expecting it to rise like a zombie at Halloween. Would I recommend these batteries? Absolutely. They've powered my gadgets - and ruined my reputation - in equal measure. If you're looking for longevity, reliability, and the occasional life-altering embarrassment, these are your batteries. Just keep them away from antiques, ferrets, and judgmental bosses. 5 stars. 🌟🌟🌟🌟🌟

Great product

Good batteries last a long time in car key fob