What are NiMH batteries?
The NiMH (Nickel Metal Hydride) batteries are the most popular type of rechargeable batteries used in digital cameras. A higher mAh value (ex. 1700) means a proportionally longer life before the recharge is needed. Most NiMH batteries can be recharged up to 300-1000 times. There is no need to wait for these batteries to be completely discharged before recharging them.
Nickel-Metal Hydride batteries can offer up to three times the capacity of the same size standard Nickel Cadmium batteries. Due to their increased capacity and energy density features, users can expect longer talk time and longer standby time. Manufacturers can use NiMH technology to increase operational time and/or decrease the size and weight of a phone.
The NiMH (Nickel Metal Hydride) batteries are the most popular type of rechargeable batteries used in digital cameras. A higher mAh value (ex. 1700) means a proportionally longer life before the recharge is needed. Most NiMH batteries can be recharged up to 300-1000 times. There is no need to wait for these batteries to be completely discharged before recharging them. There is not much difference between brands. Rechargeable NiMH batteries slowly discharge themselves when sitting unused.
Nickel metal hydride, or NiMH, batteries are a type of rechargeable battery similar to NiCad batteries, but made with more affordable and environmentally friendly components. NiMH batteries are increasingly popular, particularly for use in consumer electronics, because of their relatively long lifespan, high charge rate, and affordability. NiMH batteries are often considered an alternative to lithium ion batteries. While lithium ion batteries may have longer life-spans, their high cost and relatively high maintenance needs make NiMH a wiser choice for many types of consumer electronics. In fact, with the exception of items such as cellular phones and laptops, NiMH batteries are usually recommended. NiMH batteries use hydrogen ions to store energy, unlike the lithium ions of lithium ion batteries. Because of the size of hydrogen ions, NiMH batteries are larger than comparably charged lithium ion batteries. The ‘metal’ in NiMH is comprised of both nickel and another metal such as titaniu
Nickel-metal hydride battery Modern, high capacity NiMH rechargeable batteries Energy/weight 30–80 Wh/kg Energy/size 140–300 Wh/L Power/weight 250–1000 W/kg Charge/discharge efficiency 66% [1] Energy/consumer-price 2.75 Wh/US$[1] Self-discharge rate 30%/month (temperature dependent)[2] Time durability Citation Needed Cycle durability 500–1000 Nominal Cell Voltage 1.2 V A nickel-metal hydride battery, abbreviated NiMH, is a type of rechargeable battery similar to a nickel-cadmium (NiCd) battery. The NiMH battery uses a hydrogen-absorbing alloy for the negative electrode instead of cadmium. As in NiCd batteries, the positive electrode is nickel oxyhydroxide (NiOOH). A NiMH battery can have two to three times the capacity of an equivalent size NiCd. However, compared to the lithium-ion battery, the volumetric energy density is lower and self-discharge is higher. Common AA batteries (penlight-size) have nominal charge capacities (C) ranging from 1100 mA·h to 2900 mA·h at 1.2 V, usually mea
