Thankfully, I discovered Eneloop batteries when my son was 5 years old. Something seemed even more wrong when my rechargeable (high discharge) NiMH batteries could not power toys after 3 or 4 months despite not being used. Something just seemed wrong about buying dozens of Alkaline batteries per year to power my toddler’s toys. Toys are what inspired me to start learning about AA batteries. Despite this sizable market, Sanyo’s Eneloop breakthrough that occurred in 2005 continues to receive scant attention. consumers still spend over $4 billion annually on mundane AA and AAA batteries to power remote controls, flashlights, digital cameras (and DLSR flash attachments), book lights, toys for kids, and many other devices.
There are so many headlines about breakthrough battery technologies that will be the wave of the future for autos, smart phones, or storing electricity generated by solar power. but even better because there aren’t any drawbacks other than the higher up-front cost. Well, low self-discharge (LSD) batteries are the cast-iron skillet of the battery world. When to Use Alkaline or Lithium Batteries (hint: rarely)ĭo you own a cast iron skillet? If so, how often have you had to replace it? If you treat it well, the answer is never.Extra Features to Look for in Premium Chargers.Recommended LSD Battery Brands (and Country of Choice: Japan).The LSD trade-off: Higher capacity means fewer recharges.Why LSD Batteries Blow Away the Competition.I also provide a Just Tell Me What to Buy section for those who just want to cut to the chase. I recommend specific products for different budgets and needs. When Jim’s testing reveals new information, appropriate changes will be made to this guide.Īs you can see from the following table of contents, I cover LSD batteries, budget chargers, premium chargers, storage, and other AAA and AA-battery-related topics. Jim has been supplied with a few chargers to test by DC Workshop. In addition to this guide written by me, Jim Hyman will continue to test batteries and write articles for FilterJoe. The technology and products associated with AA batteries and charges change slowly, so this will be easy. It will be maintained and updated to stay current through early 2019.
#Are eneloop batteries lithium update#
This guide is a 2017-2018 update on AA and AAA rechargeable batteries and chargers. If you prefer to understand what you’re buying, read on. If you prefer to skip the details, click to the Just Tell Me What to Buy section of this article. Once you’ve tried LSD batteries with a good charger and realize how good they are, you’ll end up using them for the vast majority of devices that require AA or AAA batteries. When used with a quality charger, LSD batteries offer the best combination of long-term cost-effectiveness, quality, durability, and environmental sustainability. Use pre-charged, low self-discharge (LSD) batteries for AA and AAA battery needs. It's not 100% purist, but it's very close and IMO no worse than using disposable batteries.After 6 years of researching and writing about AA and AAA rechargeable batteries and chargers, this site continues to have the same basic advice: Opus charger performing a different function on each LSD battery: 400 mA charge, 200mA discharge, internal resistance test, charge test The advantage is higher voltage, of course, but in a way that doesn't visibly modify the Lego. Likewise "rechargeable alkaline" batteries don't work very well in high-current situations like this. I looked at NiZn batteries but they're really unreliable and even the good ones tend to fail quickly (to get 6 that work you really need to buy 12, and to have 6 working after 100 cycles you may need to start with more than 12). I'm tossing up using a 3S2P setup with 6 cells, but charging becomes more tricky as the paralleled cells have to be very tightly balanced when I connect them. That gives me about 800mAh of capacity, but the LiIon cells are happy to deliver 3A or so and that will power 2 IR controllers with XL motors on them (just not for very long).
#Are eneloop batteries lithium series#
I am starting to experiment with 14500 LiIon batteries (AA sized), because 3 of those in series is a bit over 11V when fully charged, so if I charge them to 3.5V I can safely use them in the Lego battery pack (I short one side of the pack and fill the other). The "1.4V when fully charged" isn't very useful, it will drop to 1.3V or less very quickly when you start discharging the battery. The difference between 7.2V from the NiMH and 9V from disposable batteries is significant, you get less power at the same current (and are actually fairly close to the P=VV/R law that applies to pure resistors), so the motors spin more slowly and have less torque. You're right about the 1.2V being the issue - Lego motors are designed to take 9V, from 6 1.5V batteries, and the IR controllers will take 10V or so without problems. Your problem is not current, it's voltage.
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