Great job!

To test that battery, of course, disconnect the A/C for at least 20 minutes, come back and test the battery voltage under full load. If it seems low, like in this video, it's done. 4 years is enough time but yeah 5 years is about right. to die. The system should be carefully inspected long before that and a new battery is a good idea anyway. Cost price is minimal and a specific service call can be expensive for the client. In huge installations, I changed them all at them at same time. Surprisingly, those batteries can hold up the system for very long times without power. More than a day, maybe a week? Just pulling the battery out and using a meter is never going to mean a thing. It will always 'show' good. They are nothing like Alkaline, AA's DSC panels are incredibly reliable and can take a direct hit of lightning. HONEST! They get up, dust themselves off and reset just fine. Not so much for the other stuff in the house. Too Bad. Got insurance? The most wonderful iconic panel is the DSC PC-3000. I am confident many of these are still in service even 35 years later, I always soldered all my splices with a 'Bic lighter' and used 'B Connecters' when they became available. B for 'Bell'. Compact Heat Shrink is better for windows. The house is going to be around a long time and the Alarm should never be a problem. Reed switches can get 'sticky' so all contacts need to be carefully tested after time they don't show much high resistance but more than a tenth of an ohm? Forget it. It's done. These panels began with the DSC PC 2000 in 1988. This was a primitive transistorized prototype that sold like mad for one year to be replaced with the PC2500, far better and fully keypad programable. No have to burn a chip. There was also the four zone PC1000 that introduced full keypad programming but really caught installers and service people totally off guard. 'Uh oh, I don't know this one" For such a tiny simple panel it required a whole new way of learning. Long before wireless Revolutionary stuff indeed and far ahead of any competition like Ademco and Napco. DSC was made in Downsview, The North part of Toronto Ontario in Canada. In respect for the 16 zone PC-3000. For it's time, this panel could offer so much for everyone that the company had trouble interesting anyone with it's newer products. It was like the Elvis Presley of Alarm panels. It left al competitors in the dust. The other panels were kind of nice but were much more expensive. Ademco got way better than it's older stuff and made itself a valid option to DSC but very different and fun to work with as they worked very well wireless, at less cost than an ITI SX-V

I appreciate this video! My yellow light did not go away so I am waiting for 24 hours to see if it needed a charge? Thank you.

well done. the same proceedure works on older DSC alarms like the 1550 and 1555. press *2, and if it lights up the #1LED, its a battery condition alarm.

is it safe to replace the battery without disconnecting power to the battery?

Do you need to do anything on the control panel before actually changing the battery? Or is just changing it enough?

Thank you! 😊

When I press *2 to determine trouble number, no number shows up, just the rapid flashing yellow trouble triangle. What would that mean?

Thank you! Every 3-5 years I need a refresher course. Well done Cheers!

Very good video, thanks a lot.

Well explained video Thank you

Thank you for explaining that the battery's life is 3-5 years where most security companies failed to explain or highlight. I bought my replacement from Lowe's, they have it on stock.

Great video! Where did you order this replacement battery Amazon?

以前在嘉善上过班？

这次怎么不发嘉善了？

Though an old video,very well made. I had no reason to watch this video,but this may really got my attention.

In Houston, DSC sucks. I hated having to clip all the trash they left in the walls that do nothing and all the cable just sitting in the housing...lol

Bump? I still don't know where to dispose the battery. Do I put it in the recycling can? The same can that takes plastics and paper?

Thank you. Great video, this resolved my problem. Where can I dispose the existing battery? STAPLES?

Great video thanks very helpful.

Great video. Very instructional and didn't leave anything out. Easy and clear. Thanks for the mention at the end about recycling the battery. You covered everything very well!

Thank you for your helpful video

Thanks for taking the time to create this helpful video!

You are the ONLY one out of the zillion others here, that told us that they problem was the battery and how to change it. You're the best! Thanks!

What if my battery's wires seem to be glued to the battery? Can I still replace it myself ?

Perfect help.very simple and informative. Good job.

Very helpful video

Thank you

Great video, very helpful, thanks!

Very good presentation and very easy to understand. However, the standing voltage of the idle battery should be measured with one of the leads disconnected. Measure the charging voltage by removing both battery leads and reading the voltage on the hanging leads. Very good as what you did was perfect for the average home owner and will save them a lot of money. Cost of repairs here in Canada would be a minimum of 1 hr. labour at $85 + the cost of the battery plus taxes. Good job.

Thank you that was very informative. What about changing the battery in the external siren, does the trouble yellow light go off after you change the battery in the siren? I did follow the depassivating procedure and the trouble light is still on!!! Help.

Helpful video. I appreciate you taking the time to do it. Have a great day.

For future reference, disconnect the leads (wires connected) going to the battery and then check for proper voltage

thanks for your video..

why not charge it up?

I just have to do this Saturday night they had the battery at Home Depot

Great job on the video. Same thing just happened to our unit and you’ve helped us out with your clear instructions. Thanks!

Very detailed and well done video. My question is it possible to get an intermittent buzzing sound lasting for about 5 seconds from the DSC control panel before or without a trouble indicator at the keypad panel. Battery voltage measures mid range of its stated values but years of service is about 5 years.

Very useful. Thanks

Thanks!!!

Good Video!!

You need to take off the red and put your red terminal in and put the meter on 10amp to check the amperage

Thank for making and posting this helpful video.

Thanks buddy

Great video super job !

I did replace the battery over 5 years ago, exactly like you explained. Now the yellow LED light turned on again. Checking the battery voltage, it reads 13.78 V, which is within the "Standby Use" spec but slightly out of the "Cyclic Use" range [14.5-14.9]. The battery also states "Replace every 3-5 years". I will give a try to replace it. Thanks.

好端端的宣传片，找什么洋人？都2018家了还崇洋媚外

Thank you. Very helpful!

Good and detailed tutorial thank you.

Thank you for your explanation