Are Rechargeable Batteries Cost Effective?
In my home, we use a great deal of AA batteries. I have done a count lately and discovered that there are 36 AA batteries in use around our dwelling. A number of them are replaced often, like those in the Wii remotes and in my son’s self-propelled school bus mill–others are replaced rarely (less than annually), such as the ones in the wall clocks. My estimate is that in a normal month, we substitute 10 AA batteries.
Due to our heavy battery use–120 AAs on average per year–we were interested in locating an alternate to this cost, and we discovered that an investment in great rechargeable batteries up front will save substantial money over the long run. Let’s walk through this step by step. In order to do a fair price comparison, I’m going to use costs from Amazon.com–a deal shopper will have the ability to find much better deals on specific things, but by using the same source, we can do a fair and legitimate price comparison.
Annual Price of Non-Rechargeable AA Batteries
Considering that in a given year we burn through 120 AA batteries in our house, we clearly buy them in bulk in the largest bundles we could. We’ve also tried many, several different brands of AA batteries and we have discovered that for our usage, we almost always get the best bang for the dollar from e2 Titanium batteries. They don’t have the longest life one of those we have tried, but my spouse and I have both observed that they have an extremely long life for the dollar.
Startup Price of Rechargeable AA Batteries
In order to effectively use rechargeables for our AA battery Use, we need to replace all of 32 batteries with rechargeables, with four bolts to spare so that we can swap in fresh ones instantly and then put the empty ones onto the charger.
After researching rechargeables, I found that almost every Source advocated using eneloop rechargeable batteries since they do not become poorer after many recharges and, what’s more, they hold their charge quite well while just sitting there. I’m also investing in a quality battery charger that will endure forever. Since I want these batteries for a seamless replacement for our older AAs, I’m eager to purchase the very best.
As a result, I selected GE/SANYO eneloop AA batteries, which are offered for $11.20 for a set of four to Amazon. Since I need 36 batteries, this is a startup cost of $100.80 for the batteries.
A La Crosse BC-900, which not just charges batteries, but really completely discharges them before starting a fee, extending the number of Recharges that you can escape a battery considerably. Unfortunately, there is another big price here–$47.94. Consequently, the startup price for our rechargeable battery usage is $148.74. I recognize that I Could cut some corners here and reduce the cost by buying other rechargeables Or a lower-end charger, but the objective is to earn the transition out of disposable AAs as seamless as possible.
Care Cost of Rechargeable AA Batteries
I put the charger in my handy Kill-A-Watt to see how much electricity is actually utilized at a recharge–and I was amazed. The battery recharger consumed 0.02 kilowatt-hours per AA battery recharged. Since I would be recharging 120 AA batteries in a specific calendar year, the recharger would eat up 2.4 kilowatt-hours each year. With power costing at $0.10 per kilowatt hour these days that means the charging price per year for those rechargeables is $0.24.
Assessing the Two
Let’s look at this year annually.
In the first year, we would invest $77.70 on non-rechargeables. Simultaneously, we would spend $148.74 on startup prices for our rechargeable batteries, plus $0.24 for recharging, giving a total price of $148.98 for the rechargeables. Ouch–after one year, the non-rechargeables are way forward, being $71.28 more affordable.
In the next year, though, the rechargeables get their revenge. The non-rechargeables cost $77.70 again, giving us a total cost over the two years of $155.40. The rechargeables simply add another $0.24 on the heap, which makes for a total cost over the 2 years of $149.22. Thus, after two years, the rechargeables are $6.18 cheaper, even then huge initial investment. Every year after that, the cost investment in the rechargeables is $0.24, while the non-rechargeables cost $77.70–an annual savings of $77.44. For us over the long haul, the rechargeables are obviously a great investment over the long term.
Let us look at it another way. In the examples I used above, The rechargeable batteries cost $2.80 each and every non-rechargeables price $0.65 each. Beyond this, there was also the startup cost of the charger itself–I used an extremely high-end charger in the example. The best way to spread out that cost fairly is to split the expense of the charger from the number of rechargeable batteries you purchase.
My 36 batteries was $1.33, giving me a total price per battery of $4.13 each battery. At that speed, I have to charge those batteries up 7 days to match the Cost of the disposable batteries. For me, that will take just about two years On average (a few will be charged more often, a little less, but that’s the Average)–then, this will become a great investment.
What Is Better For Me?
Let’s look at the numbers in general.
The more AAs you use in your House in total, the greater your Rechargeable startup price will be. This is because you will want to buy more high quality rechargeables to rotate into the mix as the old ones wear out. You may want to just get rechargeables for the things that you use often in order to reduce this number, but it is really worthwhile to just get rechargeables into all of the places in your home where you use AAs.
The faster the startup cost will be recouped and you will be profiting from the investment. If you have a lot of heavy-use items that go through batteries like a kid goes through candy on Halloween night, then that number is quite high and it is worthwhile to dive into rechargeables.
The best way to Find out if this is rewarding for you is To keep track of how many AA batteries you replace during a lengthy period–say, six months–and also how many AA batteries you have in your home. The easiest way to count batteries is to buy a giant jumbo package of this AAs and write the date of purchase on the back, then note the day you consume the last of the batteries — this gives you a good idea of the number of AAs you use in a normal month.
Here’s a thumbnail calculation: split the number of Batteries you squander in a given year by the amount of batteries total in your home (and a couple for backup purposes). That’s how often you’ll recharge (or replace) an average battery in a year, and the higher it’s, the more you are going to escape a battery charger. My suggestion is that if your number is over two, look intently at getting top quality rechargeables into spinning. When it’s over four, you ought to definitely get good rechargeables in rotation.
I am personally convinced that any family that has even a Single device that uses a high quantity of batteries should look seriously into rechargeables. It requires some time to overcome that initial investment, but After that the savings is quite fine–it’s basically batteries at no cost.