Mine are made in China, not Germany. Are they fakes?

They are not fake. They are just made with slave labour.

how do i fit the varta 4230 to my watchman oil sensor - the one actually in the tank?

Unscrew by hand the black sensor on the top of the tank, take it back to the plug in reader inside the house, turn off plug in reader. On the sensor undo 4 screws and gentle pull apart you will see the batteries, remember the way the old batteries go in (which way up). Replace and put together. Hold sensor and the reader together and turn on, you will see a black dot on the sensor touch that against the plug-in-reader until you get a connection. screw it back on the top of your oil tank. PS if it's raining cover the hole up on the top of your oil tank whilst your refitting the batteries. Hope that helps.

how do i fit the varta 4230 to my watchman oil sensor - the one actually in the tank?

Unscrew by hand the black sensor on the top of the tank, take it back to the plug in reader inside the house, turn off plug in reader. On the sensor undo 4 screws and gentle pull apart you will see the batteries, remember the way the old batteries go in (which way up). Replace and put together. Hold sensor and the reader together and turn on, you will see a black dot on the sensor touch that against the plug-in-reader until you get a connection. screw it back on the top of your oil tank. PS if it's raining cover the hole up on the top of your oil tank whilst your refitting the batteries. Hope that helps.

could you advise use by date?

Sorry, I just installed mine, I didn't check to see if there was one. That was about a year ago in a Roberts clock radio about 2003 vintage that came from a charity shop. It keeps the digital clock going when not plugged in. Still working

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Description

🔋 Power your passion with VARTA’s pro-grade lithium energy!

POWER UP YOUR TECH - 6.0 Volt lithium battery delivers consistent, high-energy output for demanding devices.
ECO CONSCIOUS ENERGY - 0% lead, mercury, and cadmium for a cleaner, safer power source.
ENDURANCE THAT LASTS - 1450 mAh capacity ensures your camera or flash stays powered through every shoot.
VERSATILE COMPATIBILITY - Perfect for high-tech cameras, flashes, smart home devices, and more—stay ahead of the curve.
EXTREME CONDITIONS READY - Reliable performance from freezing cold to scorching heat—never miss a moment.

The VARTA CR-P2 Professional Lithium Battery offers 6.0 volts and 1450 mAh capacity, engineered for high-performance devices like cameras and flashes. Its lithium technology ensures reliable power delivery across extreme temperatures, while being environmentally responsible with zero toxic heavy metals. Packaged individually in original blister packaging, it’s the go-to choice for professionals demanding consistent, long-lasting energy.

Reviews

D**D

Batteries

They are batteries. Not much more can be said about that?More expensive than duracell but have more power.So yeah, batteries. Good ones.

19.07.2025

C**L

Good value and fitted perfectly

Arrived on time and used in car key fob.Worked perfectly.

26.04.2025

C**L

Missing battery from pack

Came quickly but had 1 battery missing from the pack

18.09.2025

R**Y

Batteries

Excellent

18.09.2025

H**N

Good purchase

15.04.2025

M**L

Replaced Ford Fiesta car key battery

Works as expected.Should last as car keys don't tend to use a lot of battery capacity.

6.04.2025

G**Y

Battery for car key fob

All good arrived promptly

30.05.2025

L**X

Purchased in July, both dead by November

I like most of you have purchased so many batteries off Amazon and eBay and if you are like me you may have noticed that no matter which batteries you buy be it from a recognised brand name or a obscure name you have never heard of they never seem to last as long as the batteries that came with your product.I purchased these two pack of CR2 batteries back on the 16th July 2022. It is now the 20th November 2022 and I need to buy more as they are both dead.Did they work? YesDid they last? well I guess that is subjective. I had one battery in a disc alarm for my motorbike at a time. the disc alarm isnt always sounding off but like with anything with a battery there will be a natural drain.The original battery lasted 3 years these batteries lasted 2 months each.

20.11.2022

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