#Eneloop batteries code#

I rather prefer these to using alkaline where I'll try to get as much out of them as possible rather than charge the batteries proactively.Better for the environment, better value over their life span and, often, more powerful, rechargeable batteries are typically better than their disposable equivalents. I might have a 10 I use in single cell devices, a couple of pair for 2-AA flashlights, maybe 5 sets of 4 I use in 4-AA devices, a few AAA singles, and several 4-AAA applications (like a flashlight and a video remote control). I typically use them in wireless mouse applications, and flashlights where I'll just charge them after a short use and rotate them in and out. I can't really say I would know much about how long they last as I no longer use them in any application where I would care. They might leak a little bit of dry dust out of the positive terminal. When they've failed I didn't see any liquid leakage like I've seen with alkaline. A few have failed, but only here and there. I also have some older Sanyo labeled batteries.

#Eneloop batteries code#

I still have quite a few batteries with the '14' date code and all are still running fine. The Panasonic label started appearing around 2014. Unfortunately Costco doesn't have those any more. I'm not sure who else buys from Fujitsu, but the standard 2000 mAh AAs are really good. But Panasonic owns the trademark and buys from Fujitsu. Just remember the current Eneloops are really made by Fujitsu after Panasonic had to sell off that battery division to avoid antitrust issues. I'm not sure when I put them in the bag that I found them, but I put them on a Panasonic charger and they were fully charged in less than an hour. They all have year and production codes, so those were made in 2008. I know this is an old thread, but I recently looked in my bag and found a set of Sony Cycle Energy batteries that I'm sure were the same manufacturing as the first generation Sanyo Eneloop. Even the Maha charger will still accept them, and that's a rare feat! http:/ / ni-mhbatteries.aspx I have a dozen or so that are still charging to 1600+mah after 10 years. Tenergy is another battery brand I've had excellent success with (especially their low self discharge), right up there with the Eneloops. I pop them in the Opus charger and they charge fine and I still get good service from the cells that the Maha won't charge. The Maha will reject many cells (due to high resistance supposedly) if it's not in 100% perfect condition- in other words it refuses to charge many cells which still have useful life in them. I own an Opus BT-C2000 (for NiCd / NiMH) and an Opus BT-C3100 (charges Li-Ion AND NiMH/NiCD cells of most every common size) and a Maha MH-C9000 The Maha is very highly rated, but I prefer the Opus chargers. Some brands have declined 50% or more in storage capacity over just a couple years (Philips brand and others.) I use a battery analyzer for all my charges, I highly recommend one both for the safest charge (computer controlled to prevent overcharging) as well as being able to monitor battery capacity and performance over time. I have had varying luck with NiMH, depending on brand. The performance is very consistent and they hold their charge well for months. They reach rated capacity and still charge to 90%+ of rated capacity after several years. The Eneloops are one of the best that I own. I have a couple box sets of Eneloops I bought from Costco (came with 8x AA, 8x AAA, and C&D adapters) about 4-5 years ago. I have dozens of NiMH batteries of various ages- from probably 10-12 years old to 1-2.