3 of 3 people found the following review helpful
8.4V vs. 9.6V ... This battery works great for me.,
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This review is from: TWO Pack Maha PowerEx MHR9VI IMEDION "Ready When You Are" 9 Volt Size Low-Self-Discharge NimH Rechargeable Battery [9.6 Volts, 230 mAh] (Electronics)
Remember, as you stack NiMh cells on top of each other, you end up with a voltage that's an exact multiple of 1.2V. So for a "9V" battery, you have to settle for either 8.4V (1.2 x 7 cells) or 9.6V (1.2 x 8 cells). At 8.4V many devices will think that the battery is already dead fresh from the charger. "IF" your device can tolerate a higher voltage, 9.6V, these batteries work great. Long shelf life, long performance life, quick charge time ... Oh, that's another thing, your charger has to support 9.6V as well, some of the older ones don't.