Question 1

Will these batteries fit my car key fob or other device that uses a standard CR2025?**

Accepted Answer

While designed to be a rechargeable alternative, some users have reported that the LIR2025 can be *slightly thicker* than a disposable CR2025. We recommend checking your device's battery compartment for a little extra space. For very tight-fitting compartments, like certain car key fobs, they may not close properly. If fit is a major concern, checking your device manual or sticking with a standard CR2025 might be the best option.

Question 2

Do I need a special charger, and is it included?**

Accepted Answer

Yes, you will need a compatible charger for 3.7V lithium-ion button cells. A standard charger for AA/AAA batteries will **not** work. For your convenience, we offer matching chargers as a separate purchase. Be sure to use a charger designed for this battery type to ensure safe and proper charging.

Question 3

How long does the battery last on a single charge, and how many times can I recharge it?**

Accepted Answer

The battery's 40mAh capacity is ideal for low to moderate-drain devices. In items like TV remotes or calculators, many users report several months of use. In higher-drain devices (e.g., some key fobs, LED lights), you may need to recharge more frequently. Under normal use, you can expect several hundred recharge cycles. For the best longevity, avoid completely draining the battery before recharging.

Question 4

I've heard about batteries swelling or getting hot. Are these safe?**

Accepted Answer

Safety is paramount. While rare, lithium-ion batteries can swell or overheat if damaged, overcharged, or used with an incorrect charger. We strongly advise using the correct charger and inspecting batteries before use. If a battery ever becomes physically deformed, excessively hot, or holds no charge, discontinue use and recycle it responsibly. Our batteries are manufactured to standard safety specifications.

Question 5

Who are these batteries best suited for, and what are the main benefits?**

Accepted Answer

These batteries are a fantastic, eco-friendly choice for powering **low-drain household electronics** like remotes, digital thermometers, and toys. The main benefits are long-term cost savings and reducing waste from disposable batteries. They are popular with hobbyists and environmentally conscious users. For critical, high-drain, or very tight-fitting devices, a premium disposable CR2025 might offer more reliable performance.

2 x LIR2025 40 mAh 3.7 V Rechargeable Battery LIR 2025 Button Cell 3.7 V 40 mAh CR2025 Rechargeable Button Cell Battery for Tan Generator Remote Control Car Key Replaces CR 2025 Girafus

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