Q: What you NEVER want to do with replaceable batteries?
Once alkaline batteries discharge to 50% capacity, it will be delivering a lower voltage than a NiMH battery. NiMH batteries stay at about 1.2 volts for almost 80% of their discharge cycle. The main difference is that an alkaline battery starts at 1.5 volts and gradually drops to less than 1.0 volts. Q: Why are AA and AAA batteries rated at 1.2 volts and alkaline batteries rated at 1.5 volts?Ī: In fact, over the course of their discharge, alkaline batteries actually average about 1.2 volts. The higher rated mAh of a battery has no effect on electronic devices other than they allow longer term use. 2000mAh)?Ī: Yes, the mAh rating will give you longer run times between recharges. Q: Can I use a higher rated mAh battery in my electronic device (i.e. Q: Why won’t NiMH batteries work in some applications such as smoke alarms?Ī: NiMH batteries self discharge about 1% per day so if used in a low energy consummation or stand-by device, the battery will only last about 90 days before requiring recharge.
RAYOVAC 6 VOLT BATTERY CHARGER BLINKING RED LIGHT TV
Q: What applications are not good places to use NiMH batteries?Ī: Any situation where the battery is not used within a 30 day period or low energy draw devices, for example smoke alarms, emergency flashlights, clocks, TV remotes, etc. Every cell available on the market above 2100 mAh will have below 1000 charge cycles. Capacity improvement or quick charging will always decrease the number of cycles. The new higher capacity AA 2500 mAh rechargeable batteries have greater power capacity, but they can only be recharged approx 500 times in the overnight mode. Q: How many times can a NiMH battery be recharged?Ī: Lower capacity rechargeable AA batteries of 1700 up to 2000mAh can be recharged up to 1000 times in overnight slow charge mode, while 2100 to 2400 mAh rechargeable batteries can be recharged up to 600 to 800 times in overnight slow charge mode. If you find yourself constantly buying alkaline batteries for an application, then you should consider using rechargeable NiMH. The most popular applications are digital cameras, flashlights, and toys. Q: What is the best application for NiMH batteries?Ī: Most all applications where there is a high energy consumption and demand, is where NiMH belongs. So if you are comparing batteries to a AA with a 2000 mAh rating, it will have twice the capacity of a 1000 mAh rating. Q: What is the mAh rating mean?Ī: This is a rating of energy storage capacity mAh = “milli-ampere hours”. When uncertain about battery charge level or condition, recharge it. The New Generation of NIMH batteries do not develop a memory effect and can be recharged at anytime during usage cycle. This is when a battery must be fully drained before recharge or their capacity is reduced. Q: What is meant by battery memory?Ī: Older generation and batteries with other chemical make-up were subject to a memory effect. A: The material is Nickel Metal Hydride (NiMH) which has many advantages over other battery construction materials.
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