Average Reviews:
(More customer reviews)Don't let the hefty size of these Rayovac Rechargeable NiMH Batteries fool you. Each one of the so-called 'D-cell' is simply an AA-cell wrapped inside a larger plastic shell. The capacity is only 2200mAh, which is typical for a NiMH AA cell. So when you use those rechargeable D-cells in your appliances, expect to get only one-quarter of the run time compared to when using alkaline D-cells.
On the positive side, the weight of this rechargeable D-cell (around 2 oz. each) is much less than that of an alkaline D-cell (5 oz). More importantly, using rechargeable batteries instead of disposable will save you money in the long run. So they are still worth considering - as long as you are willing to recharge them frequently.
If longer run time is important, you should look for real D-size rechargeable batteries with much greater capacity, such as the CTA D Size 12000 mAh NiMH. Unfortunately, they are also a lot more expensive than those Rayovac D-cells.
Don't forget you also need a charger that can accept D-cells. The model I recommend is the Rayovac Universal Battery Charger, which can recharge AA/AAA/C/D and 9V batteries. Another valid approach is to get the Sanyo Eneloop Power Pack, which includes 8 AA cells and 4 each of C- and D-shell adapters. That way, you can use the same AA rechargeable cells in appliances that require larger batteries.
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Product Description:
RAYOVAC½ Rechargeable Nickel Metal Hydride (NiMH) batteries are a perfect power solution for demanding high-drain devices like digital cameras. They last up to 4 times longer than alkaline batteries in digital cameras and can be recharged up to 1000 times!
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