12v Deep cell battery recommendations

[Maple River Sugar]

I'm looking for deep cell battery recommendations for a 400 tap, Guzzler pump vacuum system on flat ground with about 1700' 3/4" mainline. My plan is to switch out the battery daily with a freshly charged battery. I would like something with something more than a 1 year warranty. I think a Guzzler pulls 14 amps under full load.

[Biz]

Is the guzzler pump a newer 24 volt model? If so you will need two 12V deep cycle batteries connected in series. The Guzzlers will draw much less than 14 amps, probably closer to 5 amps or less. Drawing sap under vacuum does not consume much power unless it is also being pumped uphill. I am setting one up later this week, will take some power measurements.

Dave

[Maple River Sugar]

It would be a 12V not the double lung. I grabbed the amp info from a spec sheet but that may include significant head. Screenshot 2022-12-14 130811.jpg

[Biz]

It would be a 12V not the double lung. I grabbed the amp info from a spec sheet but that may include significant head. Attachment 22654

OK that is an older 12 volt motor which has not been sold by Bosworth for a few years. But I would guess it would draw the same total power, about 100 watts or less but current will be higher, about 8-10 amps. A typical class 29 deep cycle battery won't last long at that rate, you will need to parallel up a second battery to give you enough run time for a 24 hour run.

Dave

[MISugarDaddy]

Another option instead of switching out batteries daily would be to use a small generator and a battery charger. We have four locations with 12 volt pumps with a small battery charger and an older 12 volt battery at each location. We have two, 700 watt, propane inverter generators that each power two of the battery chargers. This eliminates the need to take the batteries in at night for charging and keeps them at full power all the time. Each battery charger only draws 2 amps so each generator can easily power two locations. We use less than one, 30# propane tank per season per generator. The nice thing about this setup is the batteries are always fully charged should a generator stop for some reason. Using propane eliminates the need to refill the generators everyday also. We have each location set up with a bypass to allow sap to flow naturally so we can remove the pumps when the temps drop below freezing.
Gary

[SeanD]

OK that is an older 12 volt motor which has not been sold by Bosworth for a few years. But I would guess it would draw the same total power, about 100 watts or less but current will be higher, about 8-10 amps. A typical class 29 deep cycle battery won't last long at that rate, you will need to parallel up a second battery to give you enough run time for a 24 hour run.

Dave

Dave, would one of your solar panel setups be able to keep up with the two batteries or this pump?

[Biz]

It could but you would need a good sized solar panel array, probably 500 watts or more with two batteries or sets of batteries paralleled up. Maybe others have tried this and can comment. Last year was tough on solar setups, we had several multi day runs that did not allow batteries to recharge fully. I had to run 600’ extension cords and battery chargers to supplement my 200 watts of solar panels.

Dave

[Loch Muller]

I'm using 400 watts of solar panels to charge 2-100 amp hour deep cycle batteries and run one of the newer 24 volt single diaphram guzzlers. Those panels can keep up for the most part, but you do have to keep an eye on the voltage during the long rainy runs when you don't see much sunshine. Once last season I pulled the batteries to top them off with a charger back at the sugarhouse. My panels are also in a wooded area (good sun, but not 100%) since I don't have any clearings near the pump and sap tank, if you are in full sun it'd be even better. This year I'm upgrading to lithium iron phosphate batteries that can discharge more without damage to the battery and weigh a whole lot less.

[Biz]

Test results: I tested a 24 volt single diaphragm guzzler while pumping a decent flow of water and pulling 27" of vacuum - electrical current was 3 amps. I would expect to see something in that range in the sugarbush too.

Dave

[Brien]

Another option instead of switching out batteries daily would be to use a small generator and a battery charger. We have four locations with 12 volt pumps with a small battery charger and an older 12 volt battery at each location. We have two, 700 watt, propane inverter generators that each power two of the battery chargers. This eliminates the need to take the batteries in at night for charging and keeps them at full power all the time. Each battery charger only draws 2 amps so each generator can easily power two locations. We use less than one, 30# propane tank per season per generator. The nice thing about this setup is the batteries are always fully charged should a generator stop for some reason. Using propane eliminates the need to refill the generators everyday also. We have each location set up with a bypass to allow sap to flow naturally so we can remove the pumps when the temps drop below freezing.
Gary

Whats the brand names of the Generators you got??