Can I use any 9v as replacement for battery in long life smoke alarm (Warrior MT588H-LB)

Forums › Gadgets, robotics, home automation, electronics (including wearables) › Can I use any 9v as replacement for battery in long life smoke alarm (Warrior MT588H-LB)

AzaK

66 posts

Master Geek
+1 received by user: 1

# 248735 8-Apr-2019 08:47

So one of my warrior alarms started beeping (Nowhere near 10 years) and stupid me pulled one down, saw no battery hatch and biffed it. The second one is now beeping and I noticed it mentioned replacing battery with correct type. I used a screwdriver and found a good old 9v inside (Lithium) so would prefer just to get a new battery if I can.

Does it have to be lithium or have specific stats or can I just use a regular one from a store? It seems like a regular 9v should be all good but I'm not 100% sure re smoke alarms and don't want to have a faulty one in the house.

Cheers

sbiddle

27792 posts

Uber Geek
+1 received by user: 7277

Moderator

Trusted

Biddle Corp

Lifetime subscriber

# 2212568 8-Apr-2019 08:50

Take it back and get a replacement.

10yr smoke alarms should last that long. A number of brands have had issues with battery life, and will swap them out.

AzaK

66 posts

Master Geek
+1 received by user: 1

# 2212573 8-Apr-2019 09:01

sbiddle:

Take it back and get a replacement.

10yr smoke alarms should last that long. A number of brands have had issues with battery life, and will swap them out.

Normally I would but no way do I have the receipt any more or remember where I got it.

timmmay

14760 posts

Uber Geek
+1 received by user: 2746

Trusted

Subscriber

# 2212584 8-Apr-2019 09:19

One person supports this post

Scanning receipts is a really handy thing to do. I put them in a pile, scan using my scanner once a month, takes only 5 minutes. You can scan using a phone easily as well, "Office Lens" is great for that, probably faster than using a scanner. I rename each file to the location the products purchased. I search using "everything search" on my PC.

Rikkitic

Fat bottom Trump
9949 posts

Uber Geek
+1 received by user: 4797

Subscriber

# 2212585 8-Apr-2019 09:23

I agree with @sbiddle. You should try to take it back anyway or just accept the loss. The answer to your question is that any 9 volt battery should work, but it won't last as long. Other than that I can't think of any meaningful difference. Voltage may be fractionally different but nothing that matters. I have actually replaced standard batteries in my alarms with the 10-year ones.

I reject your reality and substitute my own. - Adam Savage

Bung

2779 posts

Uber Geek
+1 received by user: 463

# 2212662 8-Apr-2019 09:48

AzaK:
sbiddle:

Take it back and get a replacement.

10yr smoke alarms should last that long. A number of brands have had issues with battery life, and will swap them out.

Normally I would but no way do I have the receipt any more or remember where I got it.

That brand may have been a Mitre10 only one. Mitre10 may have stopped selling them, you should try returning yours.

The Fire Service commenting on an alarm that they were installing that was failing blamed condensation on the circuit boards. More houses overseas have central heating so are drier. Their supplier apparently made some changes. This may have been using a conformal coating on the board. That's how Telecom fixed a corrosion problem on jackpoints.

sbiddle

27792 posts

Uber Geek
+1 received by user: 7277

Moderator

Trusted

Biddle Corp

Lifetime subscriber

# 2212675 8-Apr-2019 10:22

Bung:
AzaK:

sbiddle:

Take it back and get a replacement.

10yr smoke alarms should last that long. A number of brands have had issues with battery life, and will swap them out.

Normally I would but no way do I have the receipt any more or remember where I got it.

That brand may have been a Mitre10 only one. Mitre10 may have stopped selling them, you should try returning yours.

The Fire Service commenting on an alarm that they were installing that was failing blamed condensation on the circuit boards. More houses overseas have central heating so are drier. Their supplier apparently made some changes. This may have been using a conformal coating on the board. That's how Telecom fixed a corrosion problem on jackpoints.

FENZ had issues with a 10yr FireAngel model they were using. They will swap any out for free that are failing within the 10yr period.

neb

963 posts

Ultimate Geek
+1 received by user: 206

Lifetime subscriber

# 2212765 8-Apr-2019 12:20

AzaK:
Does it have to be lithium or have specific stats or can I just use a regular one from a store? It seems like a regular 9v should be all good but I'm not 100% sure re smoke alarms and don't want to have a faulty one in the house.

Store-bought should be fine, but don't expect a terribly long life. I use LiIon rechargeables which last about a year on each charge, and you're not paying the rather pricey cost of standard 9V batteries.