Wet Ni-Cad vs Wet Lead Calcium Batteries
- Thread starter eddee50
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brian john
Senior Member
- Location
- Kilmarnock, Va
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- Retired after 52 years in the trade.
Wall packs or a centalized unit?
kingpb
Senior Member
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- SE USA as far as you can go
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- Engineer, Registered
Keep in mind that Ni-Cad requires special disposal and handling becasue they are considered hazardous waste. I think the deciding factor will probably be temperature capability. If the mechancial room is going to get very hot, then the batteries you select will need to handle that temperature.
If you have very many of them, I would suggest looking into putting the batteries remote, in a conditioned space room. If you get maintenance free lead acid, you don't even need an eye wash, shower, curb, or special ventilation.
If you have very many of them, I would suggest looking into putting the batteries remote, in a conditioned space room. If you get maintenance free lead acid, you don't even need an eye wash, shower, curb, or special ventilation.
physis
Senior Member
I like sealed lead acid too. As long as they don't stay discharged for many days they last basically for ever and store a lot of current. And they behave the same today as they did when they were new if they haven 't been damaged in some way.
I'm not a huge fan of Ni-Cads mostly because of their memory issues and the capacity tends to degrade with use. But an application like this wont use the batteries very often so that's not really much of an issue.
I used to work with systems that used gel cells some years ago, not that many, but they seemed to work really well.
Wet lead calcium I haven't heard of so I have no opinion but I'll want check out what they are if I get around to it.
Edit:
In California a refridgerator is hazerdous waste, basically everything you trhough away is some kind of an issue. At the dumps you're charged extra for things that the facility is going to collect money for from recycling.
I'm not a huge fan of Ni-Cads mostly because of their memory issues and the capacity tends to degrade with use. But an application like this wont use the batteries very often so that's not really much of an issue.
I used to work with systems that used gel cells some years ago, not that many, but they seemed to work really well.
Wet lead calcium I haven't heard of so I have no opinion but I'll want check out what they are if I get around to it.
Edit:
kingpb said:
In California a refridgerator is hazerdous waste, basically everything you trhough away is some kind of an issue. At the dumps you're charged extra for things that the facility is going to collect money for from recycling.
Last edited:
zbang
Senior Member
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- Roughly 5346 miles from Earls Court
kingpb said:
So do lead-acid batteries, but those you can usually dump off at Pep Boys. (Actually, pretty much any battery you'll find is hazardous waste.)
weressl
Esteemed Member
eddee50 said:
'Wet' batteries are normally refer to free breathing cells. The spill hazard of either type would drive me away from specifying them. Sealed led-acid would probably the cost effective choice. If you have a testing program in place finding the dead battery would be equal in both cases. Ni-Cads are more reliable for these type applications, mainly because they are constructed with higher quality control.
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