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Which rechargeables are confirmed to fit inside SR71?

post #1 of 10
3/7/05 at 3:34am
Thread Starter 
Okay, I know there's been a few threads on batteries with the SR-71, but size is often a concern and I was wondering which batteries have been confirmed to fit inside the amp (and with back plate completely closed)?

Thanks.
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post #2 of 10
3/7/05 at 3:54am
i recently had some plainviews from norm, and they fit perfectly with the sr-71, like the back plate was totally flushed against the casing and there was no space at all, i know that there were two versions, i believe i had the newer one.
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post #3 of 10
3/7/05 at 4:02am
i believe all fits, u jsut need to push them in real hard so that the spring battery contacts would bend in. after some time you should be able to close them easily.
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post #4 of 10
3/7/05 at 12:17pm
Maha powerex fits completely inside.
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post #5 of 10
3/7/05 at 12:21pm
My Ipower batteries fit in nice and easy too.
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post #6 of 10
3/7/05 at 2:27pm
I just got Plainviews this past weekend from Norm as well for my SR-71. They are a bit longer than the Duracells that I was using previously (1mm or so). The back plate screwed in with some reluctance at the extra length, but I believe over time the battery clips will adjust to this.
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post #7 of 10
3/7/05 at 11:37pm
Obviously, the safest bet is Norm's current batch of Plainviews, although I think he's running low. Interestingly, when I ordered them from him, he was not aware of the length difference between "old" and "new" Plainviews, as observed by Jahn.

One major possibility, that I eventually decided not to go for, is the iPower 250/260mAh 8.4V batteries. From Phil LaRocco's observations and pictures, they're actually shorter than an alkaline, but a little thicker. To my eye, the SR-71 has room for a somewhat thicker battery, so they ought to fit. Ray has claimed that battery voltage doesn't make a difference for the SR-71, so the iPower might be a good, longer-lived alternative to the Plainview.

On the other hand, I wimped out and went with some of Norm's Plainviews and a Maha charger...

Also, note that some people have mentioned having length problems with the Maha 9.6V, so beware. It may be a similar situation to the Plainviews, where different batches have enough of a length variation to exceed the SR-71's tolerances.
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post #8 of 10
3/7/05 at 11:39pm
Quote:
Originally Posted by Dimitris
My Ipower batteries fit in nice and easy too.
D'oh! Congratulations -- I didn't quite have the guts to try them. What's the capacity of the ones you're using? And what sort of battery life are you getting out of them?
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post #9 of 10
3/8/05 at 2:25am
Quote:
Originally Posted by Dixie Flatline
D'oh! Congratulations -- I didn't quite have the guts to try them. What's the capacity of the ones you're using? And what sort of battery life are you getting out of them?
I got the 250mAh and they fit quite nicely.

http://www.thomasdistributing.com/ip...le-battery.htm

Their lenght is just ok for the SR-71. I also got the Ipower recharger but first charge took me around 8 hours per set! Any ideas if this is because of the bigger capacity or is this because its the first time i charged them? Does it get faster with the following charges? I am still running on my first pair so i havent calculated battery life but i will keep you posted as soon as i time the second pair.
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post #10 of 10
3/8/05 at 5:31am
I just use the ghetto 8.4v 150mA rat shack NiMH and they have fit fine and give me a good 7-8 hours of moderate play. Not as good as the plainviews I've had but they stopped holding a decent charge and these were $3.95 a piece so why not.
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