Customer Reviews

Rayovac NM713-2 Rechargeable NiMH D Batteries (Two-pack)

5 star:		(3)
4 star:		(2)
3 star:		(2)
2 star:		(2)
1 star:		(9)

 

 

Be careful when shopping for rechargeable batteries! The Rayovac (and Energizer) products have the same Amp-Hour capacity as a "AA" battery! Do a little web searching and you'll find the Energizer is really an AA-sized cell in a "D" package - but sells for much more! I can't speak to the inner construction of the Rayovac, but it has a capcity of 2200 mAh -- definitely in the AA range (in fact, somewhat low for a good rechargeable AA these days). If you want the power capacity that a "D" size package should give you, look elsewhere -- the capacity should be in the 10,000+ mAh range.

This is the kind of power rating (2200 mah) that would be pretty good for a AA battery, but way to low for a D cell. At all-battery.com you get two 9000 mah batteries for 12.99. Rayovac is a good old name, and these aren't bad batteries. But, you'll get longer use with a higher rated battery.

for that power rating I would rather use AA cells rated higher with some old snap in D cell converters I have from an old NiCad set.

2200 is very low for a d-cell

Don't get fooled like I did. It turns out that a real D NiMH cell should store 7500-10000 mAh.

The AA that you can get have a mah rating of 2500. The D battery should have at least 3 times that much. These are old and while they may be good batteries, they won't give you power very long.

This is a AA battery in a D size case. It will last less than half the time of a "real" D size NiMH cell. The power available from a battery is indicated by the mAH rating, with more being better. The price of this item looks good until you realize you are paying for a D cell and getting AA performance.

I bought these batteries to use with my Sirius boombox and they will power the unit for only about an hour or so before the unit shuts off.

These Ray-o-Vacs are really just a "AA" battery in a "D" case. Paul L.'s review is exactly on the money. I've seen a website that has a picture of this battery sawn in half, and it's obviously just a double AA inside. The battery itself is palpably far lighter than a regular D-cell. When I put these batteries into a flashlight with regular D-cells, they only last about a quarter of the time; it seems like I have to open the flashlight and replace them every time I use it. If you're camping, that just renders the flashlight almost useless.

Look at the rated capacity of the battery. A decent D-cell should have 5000maH capacity; a good one, 10000maH. These only have 2500maH.

-Boyce Byerly

These batteries only lasted in the baby's swing for 2 days. I bought some good rechargeables that last a couple of weeks at a time and use these only to hold me over while the good ones are charging.

This batterys specs is baffling - it should be at least 8K - the MAHA NiMH D-Cell is 10K millamps / hour.