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How can I get the most out of my NiMH batteries?
Please note that for new NiMH batteries, it is often necessary to cycle them at least three to five times or more before they reach peak performance and capacity. The first several times that you use your NiMH batteries you may find that they run down (discharge) quickly during use.
Do NiMH batteries vent?
Do NiMh AA batteries have safety vents? – Quora. They don’t and rightfully so. See, Nickel Metal Hydride battery is a inter conversion type battery which is similar to Nickel Cadmium battery, neither of them explode.
Can you overcharge a NiMH?
Excessive overcharging of a NiMH cell can result in permanent loss in capacity and cycle life. If a cell is overcharged to the point at which pressure begins to build up, elevated temperatures are experienced and can cause the separator to lose electrolyte.
Can NiMH batteries be connected in parallel?
Though some of the batteries have capability to provide 10 Amps and some 12 Amps, load current of more than 5 Amps will damage batteries rated for 5 Amps. Therefore load current has to be limited to 5 Amps. Connecting batteries of different voltage ratings in parallel is not possible.
What is the nominal voltage of NiMH battery?
Nickel–metal hydride battery
| Modern NiMH rechargeable cells | |
|---|---|
| Specific energy | 60–120 W·h/kg |
| Self-discharge rate | 13.9–70.6\% at room temperature 36.4–97.8\% at 45 °C Low self-discharge: 0.08–2.9\% (per month) |
| Cycle durability | 180–2000 cycles |
| Nominal cell voltage | 1.2 V |
When should I discharge my NiMH battery?
This is when a battery must be fully drained before recharge or their capacity is reduced. The New Generation of NIMH batteries do not develop a memory effect and can be recharged at anytime during usage cycle. When uncertain about battery charge level or condition, recharge it.
What rate should I charge NiMH?
The cheapest way to charge a nickel metal hydride battery is to charge at C/10 or below (10\% of the rated capacity per hour). So a 100 mAH battery would be charged at 10 mA for 15 hours. This method does not require an end-of-charge sensor and ensures a full charge.