Renata ZA675 Pack of 6 - Batteries

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A Swiss made hearing aid battery from Renata.

ZA675 Zinc Air Button Cell.Voltage: 1.40V; Capacity: 610.0mAh; Height: 5.40mm; Width: 11.60mm; Depth: 11.60mm. Compatible with: 675 675A 675AE 675AP 675AU 675HP 675HPX 675SA AC675 AC675E B6754 B900PA CP44PR44 DA675H H675AE L675ZA ME9Z P675 PR44 PR675H.

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Fuji NP-40 3.7V 710mAh Li-Ion Battery replacement by Energizer - Energizer FLNP40 Digital Camera Battery.Voltage: 3.70V; Capacity: 710.0mAh; Height: 6.00mm; Width: 35.00mm; Depth: 40.00mm. Compatible with: F-NP40 FLNP40 FNP40 NP-40 NP40 VB103015.

For batteries of the sizes AAA, AA, C, D, and 9 volt, there are two popular types of rechargeable batteries that are fairly long lived, Nickel-Cadmium (NiCd, sometimes pronounced Ni-Cad), and Nickel-Metal Hydride (NiMH). There is a third type, reusable alkaline, which is not addressed in this page because reusable alkaline batteries are capable of a significantly fewer charge/discharge cycles. However reusable alkaline batteries hold their charge in an unused state longer than NiCd and NiMH, and can be ideal for use in portable radios and flashlights.