![]() ![]() Solar batteries, particularly those that are part of a solar battery pack are built to endure natural elements such as sunlight, cold, and moisture. Add to this the low operational cost since they can be charged using just solar energy, and it is easy to see how their benefits make the higher initial cost a worthy investment. So, prices are going down and will continue to head south in the future. ![]() Moreover, the technologies used for manufacturing solar batteries are constantly improving. However, their higher capacity and longer lifespan mean they can be used more frequently and for longer. Solar rechargeable batteries are undoubtedly more expensive than regular rechargeable batteries. And that's just at peak capacity, which means that even after about 4-5 years of use these batteries will continue to function at 70% capacity. Plus, they have twice the lifespan at 1000-2000 cycles. In fact, some can go on for several hours on a single full charge. In contrast, solar rechargeable batteries that work on lithium-ion technology have considerably larger storage capacity. This means that these batteries could easily go through 3 or more cycles per day, which would put their realistic lifespan at no more than 1 year. However, given their limited power storage capacity, one full charge will seldom last more than a few hours. Overall, the lifespan of these rechargeable batteries is about 500-1000 cycles of charge-discharge. LifespanĪ NiCad battery has around 1.5 years of usable life at peak capacity, meaning that after this point, the battery will often only get half charged till it eventually degrades completely around the 3-year mark.Ī NiMH battery operates on a similar principle offering around three years at peak capacity with deterioration in performance until up to 5 years. Regular rechargeable batteries don't have such features, which means that their discharge rate is only suitable for low-power devices. In terms of appliances, this would equate to an operation time of 10 plus hours for a 90-100 W mini fridge or over 2 hours for a 550 W rice cooker.Īlso, most solar power batteries have variable charge and discharge rates, which allows them to be charged quickly and gives them the ability to support load-hungry applications such as appliances with heating elements and even power tools.Īlso, high-end solar batteries have varying charge rates based on the power supply used for charging. This means that if you have a battery of 1500 Wh, it will provide 1500 W of power for 1 hour. This is basically the way to measure the rate at which a battery will charge/discharge the power it holds.Ĭ-rate = Discharge current/Rated capacity of the battery The discharge rate of batteries, including solar batteries, is given with the unit C-rate. In addition to these, some of the other notable functional differences between solar batteries and rechargeable batteries include: Discharge Rate In contrast, lithium-ion rechargeable batteries, which bring superior technology to the table, often come with indicator panels of some kind that tell the user about the remaining charge and time to full charge. ![]() Also, as they run out of charge, NiMH batteries tend to cut power suddenly and not in the trickle-down manner that is common in Nicad batteries and even regular alkaline batteries. That said, of these two, NiMH has 3 to 4 times the capacity of Nicad, yet it is no match to Li-ion batteries. They are typically smaller in size and capacity and certainly not as environmentally friendly as lithium-ion batteries. So, they can be used in a wide range of applications.Īs opposed to this, most regular rechargeable batteries are either Nicad (Nickel-cadmium) or NiMH (Nickel- metal hydride). Lithium-ion batteries are available in a range of sizes and power capacities, as well as in portable and non-portable models. They are lightweight, offer greater efficiency, require very little maintenance, and boast a significantly longer lifespan. How are Solar Batteries and Normal Batteries Different?Īlthough deep-cycle batteries of 3 types are used in solar power systems, lithium-ion products are the preferred option. So, continue reading to know how solar rechargeable batteries differ from regular rechargeable batteries and how to choose the right kind of battery for your requirement. The power source that a battery requires to generate the electric charge and how it stores the power generated makes a difference not just to its specifications but also to its lifespan, usage, capacity, and other functional factors. But, in regular rechargeable batteries, this chemical process can be reversed and re-initiated. ![]()
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