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⚡ Power your legacy laptop like a pro—never miss a boot or a beat!
The LeFix Coin-Cell RCT CMOS Battery is a 3V CR2032 replacement battery with a 2-pin, 2-wire connector and 1.0mm pitch, designed specifically for HP 820 G1 and 640 G1 laptops. It ensures reliable BIOS power to maintain system date and settings, preventing boot errors and system crashes caused by dead CMOS batteries. Lightweight and compact, it’s the essential upgrade to keep your legacy device running smoothly.
| ASIN | B08PRYPHKM |
| Are Batteries Included | Yes |
| Batteries | 1 CR2 batteries required. (included) |
| Best Sellers Rank | 103,395 in Computers & Accessories ( See Top 100 in Computers & Accessories ) 2,316 in Laptop Batteries |
| Brand | LeFix |
| Customer Reviews | 4.2 4.2 out of 5 stars (117) |
| Date First Available | 24 Dec. 2020 |
| Delivery information | We cannot deliver certain products outside mainland UK ( Details ). We will only be able to confirm if this product can be delivered to your chosen address when you enter your delivery address at checkout. |
| Guaranteed software updates until | unknown |
| Item Weight | 9 g |
| Item model number | 820 G1 640 G1 |
| Lithium Battery Energy Content | 3 Watt Hours |
| Lithium Battery Packaging | Batteries only |
| Lithium Battery Weight | 0.14 Grams |
| Manufacturer | LeFix |
| Number of Lithium Metal Cells | 1 |
| Product Dimensions | 4.5 x 2 x 0.32 cm; 9 g |
| Series | cr2032 |
| Voltage | 3 Volts |
J**S
Perfect
Exact battery for my HP 820 laptop
M**D
Flat battery
Battery was totally flat.
M**A
can not use it
the white bit on the wire was broken so means i can not use it
D**L
ok
B**.
it lost a star because the connector was wired opposit to what i needed
M**Y
I own a low-cost, off-brand mini PC that stopped working when just six months old. That was too bad, as I liked the machine. The supposed one-year warranty from the no-name manufacturer was a joke. They didn't respond to my attempts to contact them and seem to have gone out of business. The pattern of malfunctioning I observed for this PC up until the time it completely died matched the symptoms of a failing BIOS battery. In particular, there were months of erratic booting and, toward the end, the system clock slowed down and behaved erratically. But the machine was just six months old, so I found the "bad BIOS battery" diagnosis impossible to believe. (BIOS batteries should last years and years.) Although skeptical, I removed the BIOS battery from the PC and measured its voltage. It was fine: exactly 3 volts. That seemed to rule out the BIOS battery as a source of the malfunction. But with nothing else to try, I ordered this LeFix replacement BIOS battery anyway to see if that would make a difference. When the new battery arrived last month, I plopped it into my PC, screwed the PC's case back together, and plugged in the machine. I thoroughly expected the machine to remain dead as before, but—amazingly—the PC sprang to life immediately and has worked fine ever since! Go figure.
T**.
My Elitebook suddenly got a CMOS error, causing the whole laptop to stop booting. I buyed the product and it came 2 days before the estimated delivery time! The laptop is working again and this is the only advertisement that didn’t cost me too much money ;). Great seller 👍 you’ve saved my laptop.
C**N
Perfecto, enviado en el tiempo previsto por correo postal, repuesto fácil de instalar y por muy pocos euros mi ordenador HP Elite Book vuelve a funcionar perfectamente.
Trustpilot
1 week ago
1 month ago