Since it comes with installed batteries, a bad idea in my opinion, has anyone had to replace them right away?
80263
The old (25 Yr old) calculator HP-12C worked for years before I had to replace the battery. The new HP-12C calculator is about 3 weeks old and no problems.
80264
No, batteries lasted many years. I'm glad it came with the batteries installed, my wife was the one who unpacked it and she would have broken the calculator trying to put batts in. HAHAHA
80265
I've had mine for six months now, and the batteries are still going strong.
2040417
Yes, exactly the same issue. I have not tried new batteries as the set I just put in was new and we only did one charge off of them. I agree that's pretty poor. If that's consistent, I think we'll return it for another one and see if the next is better.
1413280
I purchased a replacement battery and they have changed the battery posts - so it is not easy. I had to solder the new battery in place.The new battery has slip on posts and the old one was attached with a small screw and nut. Bah Humbug....
1514824
Are you sure the batteries are good? I had that happen and the (unused) batteries were dead.
296983
We just changed the batteries for the first time since installing them the first weekend in September. They were the batteries that came with them so not sure if fresh ones will last longer. We replaced with rechargables.
1031371
We have not changed our batteries yet. It is rather new...from a June-July purchase. We don't look for this to be a problem. Had another brand and it wasn't a problem. This brand and unit was rated higher than our ten-year-old wireless weather temp. I just don't expect to be disappointed with this brand....
1058138
Mine came with the batteries installed. You take it apart with the 3 screws and the 3 round batteries are in a holder on the circuit board. The batteries are not obvious. I have not replaced the batteries yet, but I had it apart for a different reason.
1000903
I haven't needed to replace batteries yet. Sorry I can't help. But now I anticipate I'll have the same problem, so I'm happy to know this online Q&A; exists. Maybe the manufacturer will give us some hints.
1342448
I haven't yet had the need to replace the battery. I did however take a look at it yesterday as I was also curious and the only thing I can think of is using a straight screwdriver on the two screws (assuming they're screws) on the face of the device. You can see the battery within. There is no way they'd make a device you can't change the battery out on... it's gotta be it.
922068
I did. I took the thing brand new out of the box, went to Best Buy and bought brand new C batteries put them in, pressed the button and nothing. Big piece of junk.... don't buy!!!
969753
Have you properly installed batteries? Have you charged them if they are rechargeable?
1342449
I have never had the occasion to need a battery replacement; did you save all literature ( the muliti-folder) that originally came with the unit was very helpful; take care, "A"!
537626
I would try a different set of batteries. I haven't had trouble replacing batteries in this.
236959
I've only added never had to replace. Your question should be on the availability of replacement batteries. For that I would check with Batteries Plus, or Battery World as they have a wide selection of hard to find batteries.
1632296
Mine had issues until I put fresh batteries in it. They weren't old, and I didn't think they needed changed but it worked. If that doesn't work, try the reset button.
501623
We've not had a problem with this issue; have not had to replace battery yet. If it's still under warranty I would send it back to manufacturer.
1059757
The instructions say "replace with fresh AAA batteries". Taking the molded surround off is a hassle, hope not to have to do it often (ever).