Tenergy Solla Rechargeable NiMH AA Battery, 1000mAh Solar Batteries for Solar Garden Lights, Anti-Leak, Outdoor Durability, 5+ Years Performance, 12 Pack, UL Certified

Great price and quality even though I've gotten a dud occasionally. The positive terminal has been tall enough to make good contact in all my solar lights so far. My solar lights are staying lit till dawn now, nice!

I tested these batteries in my charger-tester and it rated each of the 10 batteries between 1000 to 1050mAh. Which is a very welcome change to all the unnamed green batteries that test about 10% of the rating on the label. I have put one in a solar light and it works fine. I plan on replacing all my solar light factory batteries with these. Hopefully the seller's claims that they are good in outdoor temperatures are as good as their claims at the capacity. Time will tell. I will come back to this review and complain if there are problems in the near future.

2022-09-22. When it comes to batteries, there much more than meets the eye. In addition to the many different sizes of batteries, there are many different compositions, and power delivery. There are Carbon-Zinc; Zinc-Manganese Dioxide; Li-Ion; Ni-MH; Ni-Cd; LiPo, and the list goes on. But before I waste your time, you first need to know whether rechargeable batteries are right for your application. The answer is simple, if you find yourself constantly buying disposable batteries for an application, then you should consider using rechargeable batteries. Now that you know you need rechargeable batteries, which ones should you get? Once again we need to go back to the application to determine this. The most common types of rechargeable batteries will consist of the following chemistries: Ni-Cd (Nickle Cadmium), Ni-MH (Nickle Metal Hydride), and Li-ion (Lithium Ion). When it comes to rechargeable batteries, here are some of the things you need to consider: 1. Number of rechargeable cycles 2. The amount of power it can discharge (drain) 3. The rate of self discharge 4. Memory effect 5. Energy Density This review will focus on these five factors for each type of battery in the lower capacity (< 2000mAh) category . Nickel Cadmium (Ni-Cd). Number of charge/discharge cycles: 400-600 Discharge (drain): supports both high and low drain devices Rate of self discharge: Moderate Memory effect: Yes Energy Density: Low Ni-Cd batteries are a pretty versatile in the sense that it can support both high drain as well as low drain devices enabling it to be used pretty much across the entire spectrum of electronic devices. They perform well in any climate whether it be stifling heat or freezing cold. And they have the ability to pack a punch and can release more power on demand without becoming damaged. Ni-Cd rechargeable batteries best suited for high frequency use items and devices that require large amounts of power to function. Common uses include Cordless Phones, Walkie Talkies, Portable Radios, Flashlights, and Portable Medical Equipment. Nickel Metal Hydride (Ni-MH) Number of charge/discharge cycles: 800-1000 Discharge (drain): low drain devices Rate of self discharge: Mid-High Memory effect: No Energy Density: Mid-High Ni-MH are best suited for low drain applications with high energy consumption and demand (digital cameras, flashlights, toys). Essentially applications where you want the battery drained within a month. Memory Effect is when a battery must be fully drained before recharge or their capacity is reduced. Ni-MH rechargeable batteries do not develop a memory effect and can be recharged at anytime during usage cycle. Ni-MH batteries are not well suited for low energy draw devices like clocks and TV remotes; its high self discharge rate (about 1% per day) would also mean that Ni-MH would not be well suited for things like smoke detectors (unless you like swapping out your batteries every 3 months). Lithium Ion (Li-ion) Number of charge/discharge cycles: 300-500 Discharge (drain): supports high and low drain devices Rate of self discharge: Very Low Memory effect: No Energy Density: Mid Li-Ion batteries solves the problems associated with both Nickel based rechargeable batteries, they can deliver full voltage without developing any memory loss. The caveat here is that Li-Ion batteries deliver 3.7V and not the lower rates of 1.2V or 1.5V. The very low rate of self discharge makes this type of battery very useful for applications like Cell Phones, Laptop Computers, and Tablets. I had purchased these batteries by Tenergy to replace those in my solar lights. With a capacity of 1000mAh, it's a bit of overkill as 300-600mAh would be more than enough to last from dusk to dawn, but I figured these are without memory effect so keeping them charged will not be a problem. I've purchased these batteries before and they worked well. They last 2-3 years in my solar lights that are out about 1/2 the year. At about a buck a piece, they're a low cost solution in keeping my garden lights lit through the night.

These work well and last the expected time for batteries that are constantly charged and recharged. Roughly three years. The Tenergy Solla Rechargeable batteries have extended the life of the existing solar fixtures I have. These batteries perform significantly better than the batteries that were originally included with those solar fixtures. Tenergy offers quality products and I have used their other rechargeable batteries and have no complaints. When these batteries reach end of life they are recyclable with convenient drop off locations such as Loews, Home Depot or your municipal recycler.

Gave new life to older solar lights. Rather than buying new solar lights I decided to try new batteries. My old ones were about 4 years old but didn’t seem to last very long. I like the lights because they are metal not plastic but also cost more originally. Now the lights last several hours into the night. Happy with my choice.

Batteries were not charged.

Good price but these don’t last very long.

not working so good

don't last long at all

Es un excelente marca ya le he comprado anteriormente y funcionan y duran más de lo que dicen

La verdad cuando leí las reseñas estaba dudoso en comprarlas, pero me arriesgue porque era la mejor opción en cuanto a cantidad de baterías por el precio, yo tenía 6 lámparas solares las cuales sus baterías ya no funcionaban, al llegar las instale y me sorprendí de que vinieran precargadas, al siguiente día se cargaron con sol y prendieron al anochecer, en cuanto vida útil no se porque apenas es el tercer día de uso!

Por el paquete de 12 baterías, esta muy bien el precio.

Bought them for replacements for our solar lights and they seem to work quite well and hold a charge.