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March 27, 2019

Battery backup for serious sump pumps

sump pump battery backup  sump pump battery back-up 1200 watts
1/2HP battery backup inverter/charger 3/4HP battery backup inverter/charger
Model Price
PST-822PS 1/2 HP pump battery backup, 1200 Watts $699
PST-1622PS 3/4 HP pump battery backup, 1800 Watts $899
These are innovative power stations designed to operate your pump during power outages.

Installation is straightfoward, just plug it into the AC, plug the pump into the backup and attach
a 12V deep cycle battery. The battery backup will automatically charge the battery and wait on standby until the power drops out. Any sized battery can be used, letting you choose how much backup time you need.
When the power returns the battery backup electronics switches the pump to wall power and starts to charge the battery. Back up tome is proportional to battery size.

Pumping capacity 3000 gal/hour on a 10ft rise with 1/2 HP pump
5000 gal/hour on a 10ft rise with 3/4 HP pump
Battery charging rate 20 Amps, with multistage charging and float mode
Recharge time A 200 AH battery can charge in 10 hours
Backup time A 1/2 HP pump will run about an hour continuously from a 200 AH battery
A 3/4 HP pump will run about 45 minutes continuously
Pumping capacity Either pump will pump about 3000 gallons on a 200AH battery, or 300 ten-gallon cycles.
Maximum battery capacity You can put as many 12V batteries in parallel as you like, extending the run time for as long as you want

Recommended batteries:
Sealed lead acid batteries are compatible with this application, for exampe this 120AH model https://www.powerstream.com/store/bp120-12.htm

sump pump run time

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