EBL 9V Rechargeable Batteries NiMH Everyday 280mAh 9V Battery for Smoke Alarm Detector, 4-Packs

EBL is a trusted brand, and these 9V NiMH rechargeable batteries live up to that reputation. The quality is excellent, and they’ve proven to be a cost-effective solution for low-drain devices like smoke alarms and water leak detectors. My first batch had two defective batteries that wouldn’t accept a charge, but EBL’s customer service quickly resolved the issue—great support! I recently bought a new set of four because my previous ones lasted nearly 10 years, requiring recharging only every 3 months toward the end of their life. In standby mode, these batteries last about 1.5 years before needing a recharge, which is impressive. After about six recharge cycles, they’ve already paid for themselves compared to replacing alkaline batteries every 5–6 years. I also appreciate the lower 280mAh capacity because it provides longer standby time than higher-capacity options, making them perfect for devices with small, consistent power draw. I’ve even used these in a non-temperature-controlled sunroom, where temps swing from over 100°F to below 10°F, and it hasn’t affected their longevity. That durability alone makes them worth every penny. I’ll keep buying this brand until they give me a reason not to. Important Note: These are not ideal for high-power devices, but they’re excellent for alarms and detectors thanks to their low discharge rate. Pros: Trusted brand with solid build quality Long standby life (up to 1.5 years in detectors) Cost-effective after a few recharge cycles Performs well in extreme temperature swings Great customer service Cons: Not suitable for high-drain devices Initial batch had two defective units (resolved quickly)

Best batteries and great price.

We like these. They seem to hold their charge for quite a long time. We use ours in our fan/light kit remote so we don't want to have to change it out often and like having extras on hand all charged up and ready to go. Works great with EBL's charger too.

11/27 updated from 1 star to 4 for customer service. EBL issued me a refund on the 9V batteries. I really wanted these to work on our smoke detectors, hopefully they can come up with something that handles the constant drain better. We love EBL batteries and have saved hundreds by being able to recharge them for frequently used toys and remotes. But this ain't it for 9V and smoke detectors. I bought them in September and 2 months later the batteries are already drained and 2 detectors are chirping low battery. A normal 9V lasts a year. I could have been ok charging and replacing these every 6-8 months, but not replacing 6 units every 2 months.

Charged right up and held the charge

Perfect. This is a repurchase because I use them in my TENS device and needed a few extras so I don’t have to wait for ones to be recharged.

Some confusing reviews about chargers and Ni cad batteries here. These are Nickel metal Hydride batteries and there are no actual 9 volt rechargeable batteries. Lithium ion "9 volts" are two 3.7 volts cells, nowhere near 9 volts and many devices won't work with them. Ni cad 9 volts (if you could find them) are actually a bit over 9 volts. There are a couple versions of NiMH 9 volt batteries, depending on the number of cells one is a just a little below 9 volts and the other a bit over 9 volts, either is a good choice for devices that require a 9 volt alkaline battery. NiMH are now low self discharge but not able to hold charge over long periods of time. That said these are the most powerful 9 volt batteries I have ever used. In the near future (and some cylinder type AA AAA C D li ion batteries are true 1.5 volt thanks to clever circuits that limit the native 3.7 volts to 1.5 and have auto shut off to prevent cell damage) li ion true nine volts will be made with 3 cells X 3.7 volts with a voltage regulator inside. The remaining issue with li ion cells in small cylinders is that they are really flat batteries rolled up into a tube, so the the smaller AAA types are not robust yet. For real 9 volt batteries that demand power and full voltage NiMH is your best buy.

Great👍

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Por el precio y la calidad es buen producto lo recomiendo para uso doméstico