ss electric1
Member
- Location
- nc
what is the correct way to discount batteries.
negative first or positive first
thanks for info
negative first or positive first
thanks for info
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fire alarm batteries
- Thread starter ss electric1
- Start date
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- Location
- Placerville, CA, USA
- Occupation
- Retired PV System Designer
It really does not matter in terms of effect on the equipment or the battery.
If one side of the battery is grounded, you will not be risking an accidental short circuit when you need to use tools to make the disconnect if you remove the grounded terminal first.
That sort of consideration is more important with high amp batteries and wrench tightened fittings as in a car than in removing push-on insulated tab terminals.
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If one side of the battery is grounded, you will not be risking an accidental short circuit when you need to use tools to make the disconnect if you remove the grounded terminal first.
That sort of consideration is more important with high amp batteries and wrench tightened fittings as in a car than in removing push-on insulated tab terminals.
Sent from my XT1080 using Tapatalk
MichaelGP3
Senior Member
- Location
- San Francisco bay area
- Occupation
- Fire Alarm Technician
It really does not matter in terms of effect on the equipment or the battery.
If one side of the battery is grounded, you will not be risking an accidental short circuit when you need to use tools to make the disconnect if you remove the grounded terminal first.
That sort of consideration is more important with high amp batteries and wrench tightened fittings as in a car than in removing push-on insulated tab terminals.
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GoldDigger, your first sentence is correct.
OTOH if one side of the battery is grounded, then you are NOT working on fire alarm batteries - I can clarify this for you if you need me to. Further, any fire alarm battery we install larger than 12 volt 12 amp hour (18 amp hour thru 65 amp hour) has ring terminals on the battery leads fastened to the battery post with a nut and bolt. I prefer pliers and a nut driver, but you are free to use wrenches.
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