19
Nov
12

NiMH Rechargeable Battery Storage

NiMH rechargeable battery storage

If you’ve made a big investment in NiMH rechargeable batteries and have a lot on hand to store, read this quick, handy guide on battery storage.

Hopefully by now you’ve made it to full NiMH rechargeable battery adoption: you don’t just take the cheap charger and a handful of AA rechargeable batteries, but rather have bought in to the notion that all of your battery-powered devices can run on rechargeable power. If this is the case, then you probably have maybe several dozen rechargeable batteries — even more than you actually ever need to use at one time.

So, the next question is, how should you effectively store NiMH rechargeable batteries in order to maximize their lifecycle and charge?

If you’ve invested in the NiMH variety of rechargeable batteries, then you’re in luck: the NiMH formula is one of the most stable and low-maintenance when it comes to battery storage. Even better news is that the Sanyo Eneloop brand of NiMH rechargeables — which has become the preeminent rechargeable battery brand in the world today — hold their charge better than any other brands.

According to Powerstream, NiMH rechargeable batteries:

“. . . can be stored indefinitely in either a charged or uncharged state. Recovery may take several cycles. If a battery is stored for a prolonged time connected to a load, electrolyte fluid will leak, the battery will begin to deteriorate, and capacity will be impaired after storage. During long time storage battery deactivation may tend to occur, and for this reason charging may stop early during recharging after storage. This problem can be solved by charging and discharging the battery several times.

The main takeaway from this tip is that, while long storage of NiMH rechargeable batteries should not damage the cell, the worst way to store rechargeables is to keep them fully charged in a plugged-in charger. Anyone who has ever recharged a battery knows that the battery casing gets warm throughout the course of the charging cycle. This is normal, and doesn’t present a problem. However, the warming of the cell inside — if left on — will eventually begin to break down the cell and can lead to a discharge or even a rupture of the battery.

The best practice for storing NiMH rechargeable batteries is to simply charge them to 100% and keep them in a cool, dry place until needed.

For more information, visit Powerstream’s guide on battery storage.

Thanks for reading our article! Be sure to check out Electronic Warehouse’s wide range of NiMH rechargeable batteries. As an added bonus, use promo code EWBLOG at checkout for 10% off your total purchase, plus fast, FREE shipping Australia-wide, just for reading this article!


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