I put new batteries in my HP48SX and it works fine. Come back to use it a few days later and the batteries are dead. I switch calculator off (it has auto switch off anyway) and the problem is the same.
HP customer services basically stated that they did not repair calculators out of warranty. I bought this in Seattle in 1993, so I guess the guarantee is expired!
Any advice would be much appreciated. I live in the UK.
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Re: HP48SX Battery drain
I suggest you use rechargeable batteries. They usually drain faster than the alcaline ones anyway.So have 2 sets of rechargeable batteries. Evaluate the number of days a set lasts. Insert the charged batteries before the old ones are thourougly drained.
The life of your batteries in the calculator depends on the usage.
About repairs: I am convinced that it will cost you more to have it fixed than to buy a new HP calculator (HP 49g*'s, HP 50g* 's).
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When you shut down the car some circuit in the car is using current at an excessive rate so as to drain the battery. To repair you need to locate the source of drain. You can do this by connecting an ammeter to the car battery and while the car is turned off monitor the amperage reading. You will see a draw. Then pull fuses, one at a time, till you see the drain virtually disappear. Now you have identified the circuit that is responsible for draining your battery. If you cannot fix it, at least you know where the hassle is and you can always pull that fuse when you leave the car unattended for a few days so that the battery is not drained. If getting to the fuse is a hassle you can always replace the fuse with some wiring and a switch that you place in the glove box and all you do is turn the switch off when you remove the key. Presto - cheap fix!!!!!!
sounds to be a drain of sorts. Do you have a good ground to the radio? If so the radio may be sticking open in the switch circuit and blows the relay buzz fuse and then after the power is removed the ciruit resets itself. If this is the case there is a dead short inside the radio
This particular flashlight uses a microchip that consumes the power of the batteries, whether in use or not. Loosen the case to where the batteries go in, so there is no contact with polarity. Or just take the batteries out completely and replace them for actual use.
Hi, I have had similar intemittent dead\low battery problems with my 2008 CDX+.
The garage could never find anything wrong with the charging system, battery or drain. I bought a replacement battery, jump start power pack, battery tester and battery charger, in total costing hunders of pounds in an attempt to resolve the problem.
I was on the point of selling it when one day I heard the roof mounted DVD player making noises when I hadn't switched it on (I never switch it on). After disconnecting it the car started perfectly for months. After reconnecting it the issue came back, however I could never recreate the problem at the dealership as it was intermittent, and they had it for days. Eventually the DVD player took in a disc and refused to eject it. This was enough to have it replaced under warranty. Unfortunately the new one took about 4 months to come in and I have never recieved my disc back.
The new DVD player seems to have helped, however I can still report that in the 6 months or so since fitting I have had one of the new overhead bulbs blow and the battery has been dead on 2 occassions. The last occassion was yesterday and we had driven the car fine the day before.
I now carry the power pack in the car at all times, however as this is my wife's car she is concerned about being stranded with our new baby. My thoughts have once again turned to changing cars (new diesel auto crv 2010?) which is a shame as the Santa Fe ticks the boxes in so many other areas.
well this is what you should try ,,jump the car get it running then when its warmed up take the positive lead of the battery if the car stops the alternator is gone (thats what charges the battery) if the car runs its fine
and if u have put another new battery in it and the alternator is fine look for any broken wires earths or positives that could be making it drain so quick and make sure your battery levels are full hope this helps
It is either a short somewhere in the electrical system or your alternator is bad. If worse came to worse what I have done. Is installed a switch in the power cable and then you just pop your hood and basically disconnect the battery every time, the switch just makes it easy. This is often a million times easier then finding a short somewhere in the miles of wiring. Good luck I know how that is, Lee