New Pytes V5 48V Server Rack Battery

[BlueMarblePA]

Does anybody know the dip switch settings for pytes v5 to the solark 15k. I can find the dip settings for the older E48100 battery, but not the newer one.

Never mind, I just found it on this youtube. It is the same as the original battery. Minute 5:03

I assume I should set the dip switches the same for all the batteries in the bank, including master and slave

 

[Oldphile]

This from Pytes.

 

[BlueMarblePA]

This from Pytes.

This pdf is perfect. Thank you!

 

[Alkaline]

I recently received the new Pytes V5 48V Battery and have had it running in our shop for the last month. The build quality is very impressive. It appears to have redundant BMS's. It is also heated. It communicated out of the box with the Victron Cerbo GX. When I get some time I will see if I can get it to talk to my SMA Sunny Islands. I really like how the batteries are restrained in an aluminum extrusion and that the BMS leads are all printed circuits. Cabling is minimal as they do use a solid copper busbar. 10 year warranty. Just thought some of you might want to see this battery.

Quick stats from the data sheet:
Chemistry LFP
Nominal Voltage 51.2V
Voltage Range 44.8V-57.6V
Nominal Capacity 100Ah
Nominal Energy 5.12kWh
Unit Dimension L19 in*W20.9 in*H5.5 in(3.2U)
Unit Weight 97lb
Standard Charge/Discharge 75A
Maximum Continuous Charge/Discharge 100A
Peak Charge/Discharge 150A(15s)
Round-Trip Efficiency ≥95%
Communication Protocol CAN/RS485/RS232
Cycle Life ≥6000cycles
Calendar Life ≥10years
Operating Temperature 14°F~131°F
Connect style Parallel
Heating system 14.4~18°F/h

View attachment 166816

Looks nice, but also no serviceable, suppose that is a tradeoff.

 

[BlueMarblePA]

Just curious what amperage people are charging the Pytes V5 at for safety?

I have two pairs of 4/0 cables from my Solark 15k 15 feet to the Victron PowerIn BusBar, and then 2/0 cables 4 feet to the 2 pairs of parallel Pytes V5 (2 x 200Ah) for total of 400Ah of batteries.

I am grid-tied and net-metered, but I want to switch to time of use and use the batteries during peak period. Hence, I am daily recharging the batteries at midnight to 6am. Default charge rate of the battery seems to be 100Amps. I tried changing it in the "Time of Use" setting in System Parameters of the Solark, but I think the correct place to change battery charging rate is in the battery charging tab. I dropped it down to 80Amps, but should I be charging even slower?

 

[glandpuck]

I have the Pytes Ebox plugged into a Luxpower 12k. The CAN port is connected from the master battery to the inverter. All the settings are communicated from the battery to the inverter. All I do is set parameters such as PV charge and or AC charge, time of charging in the 24 hour period, SOC or Volts to charge and discharge to and the limit in kW of the charge input to the batteries. On the Luxpower app, the BMS is displayed with a charge and a discharge limit set automatically to 400 amps. That would be 50 amps per each of the 8 batteries. So for example, if my batteries were charging at 400 amp capacity and voltage of 56, then that would be 22,400 watts. I can never come close to that with my PV and not even with my grid. I set my max kW charge to 5kW regardless of the source. So 5 x 56V = 280 amps. I have 2 sets of battery input into the inverter, each using 3/0 cable. This would be about 140 amps per battery cable set, well below the rated cable capacity. 140 amps into 4 batteries is 35 amps per battery.

I also set my limits to 90% SOC max charge and 20% max discharge. Nothing else gets done.

There is also a button icon ton the app screen that can be tapped to perform a quick charge, using AC settings which is good for cloudy days. This runs at the AC charge setting I have input and runs for an hour. It can be tapped again to stop it too.

 

[andrew-d]

Nice review video of this battery from @Roll2Videos today:

 

[YRanch]

I have the Pytes Ebox plugged into a Luxpower 12k. The CAN port is connected from the master battery to the inverter. All the settings are communicated from the battery to the inverter. All I do is set parameters such as PV charge and or AC charge, time of charging in the 24 hour period, SOC or Volts to charge and discharge to and the limit in kW of the charge input to the batteries. On the Luxpower app, the BMS is displayed with a charge and a discharge limit set automatically to 400 amps. That would be 50 amps per each of the 8 batteries. So for example, if my batteries were charging at 400 amp capacity and voltage of 56, then that would be 22,400 watts. I can never come close to that with my PV and not even with my grid. I set my max kW charge to 5kW regardless of the source. So 5 x 56V = 280 amps. I have 2 sets of battery input into the inverter, each using 3/0 cable. This would be about 140 amps per battery cable set, well below the rated cable capacity. 140 amps into 4 batteries is 35 amps per battery.

I also set my limits to 90% SOC max charge and 20% max discharge. Nothing else gets done.

There is also a button icon ton the app screen that can be tapped to perform a quick charge, using AC settings which is good for cloudy days. This runs at the AC charge setting I have input and runs for an hour. It can be tapped again to stop it too.

Can I ask why you charge to 90% rather than 100%? Thanks!

Dave

 

[YRanch]

Just curious what amperage people are charging the Pytes V5 at for safety?

I have two pairs of 4/0 cables from my Solark 15k 15 feet to the Victron PowerIn BusBar, and then 2/0 cables 4 feet to the 2 pairs of parallel Pytes V5 (2 x 200Ah) for total of 400Ah of batteries.

I am grid-tied and net-metered, but I want to switch to time of use and use the batteries during peak period. Hence, I am daily recharging the batteries at midnight to 6am. Default charge rate of the battery seems to be 100Amps. I tried changing it in the "Time of Use" setting in System Parameters of the Solark, but I think the correct place to change battery charging rate is in the battery charging tab. I dropped it down to 80Amps, but should I be charging even slower?


View attachment 187100

Can you post where you found the rack that fit your V5's? Model number too. Thanks so much!

Dave

 

[Ampster]

Can you post where you found the rack that fit your V5's? Model number too. Thanks so much!

The only enclosure currently available is the V-BOX-OC which is listed at NAZ for $1490. Other suppliers like AltE and Watts247 may have them in stock or can order them.. There are rack brackets and a soon to be released indoor rack enclosure, but no UL documents for those yet.
.

 

[glandpuck]

Can I ask why you charge to 90% rather than 100%? Thanks!

Dave

My loads are larger than my PV generates, so I have to grid charge also and split the amps available with an EV, electric dryer, etc. So I just run out of time in the 24 hour day to make it to 100% SOC.

 

[YRanch]

My loads are larger than my PV generates, so I have to grid charge also and split the amps available with an EV, electric dryer, etc. So I just run out of time in the 24 hour day to make it to 100% SOC.

Ok, cool, thank you. I didn't see anything in the Pytes data that suggested limiting the charge to less than 100%, so I was curious if I missed something or it was an operational consideration for your system. Appreciate the response!

 

[YRanch]

The only enclosure currently available is the V-BOX-OC which is listed at NAZ for $1490. Other suppliers like AltE and Watts247 may have them. There are rack brackets and a soon to be released indoor rack enclosure, but no UL documents for that yet
.

Yes, I've seen that one and a Pytes video from 2 months ago listed an R-Box-IC (2/4/or 6 battery size) specifically for the V5, though I have not seen it listed by a retailer as yet. I was curious as to the enclosure in the picture that BlueMarblePA posted, post #30, that housed 4 V5 batteries.

 

[Oldphile]

The V-Box-OC will work for me in my garage. I want a slim profile. However, it's currently not in stock.

 

[Ampster]

I was curious as to the enclosure in the picture that BlueMarblePA posted, post #30, that housed 4 V5 batteries.

I know that rack is not the V-BOX-OC becasue the V-BOX-OC has the four V5 batteries stacked vertically one pair on the bottom and another pair on top.

 

[Alkaline]

Looks like Pytes is using REPT cells

 

[BlueMarblePA]

Can you post where you found the rack that fit your V5's? Model number too. Thanks so much!

Dave

Dave
This is not UL listed for the Pytes battery, but I found one local for good price $300

AV Rack 18U x 27"D

AV Rack (18U x 27"D) for 19 inch equipment is fully welded steel, reinforced at all load-bearing junctions. Includes adjustable mounting rails.

www.lowellmfg.com

I did need to buy the rear server rack rails and four shelves.

 

[Ampster]

So I just run out of time in the 24 hour day to make it to 100% SOC.

I have a similar issue in the winter. I don't worry about charging LFP to 100% every day. I do manage how low they will go before charging from the grid because I want some reserve available if we get a power outage in early morning.

 

[Ampster]

Looks like Pytes is using REPT cell

Are you referring to the Pytes V5 or the Pytes 48100R? The V5 has a different form factor and I saw one post which said the V5 uses CATL cells. None of the Pytes literature I have seen gives any clue?

 

[andrew-d]

From the UL9540A test report for the V5 (edit: 48100R, sorry) battery, they use the cell model "CB27173204EA", which is a REPT cell.

 

[andrew-d]

Sorry, my mistake; that model number was for the 48100R; the V5 uses a cell with UL 1973 file # MH64238, which is also a REPT cell, but it doesn't specify the exact model.

 

[glandpuck]

From the UL9540A test report for the V5 (edit: 48100R, sorry) battery, they use the cell model "CB27173204EA", which is a REPT cell.

REPT in the Ebox, CATL in the V5. This probably accounts for the different dimensions. Both are high quality batteries, considered top line in China.

REPT BATTERO

REPT BATTERO provides solutions for power battery systems for new energy passenger vehicles, commercial vehicles, special vehicles, construction machinery, ships, and aircraft.

chinarept.com

What I like so far about the Pytes is that the company has a good USA presence, online documents, downloads, firmware, will respond to email and also answers the phone for tech support. And, lastly the 8 racks I have installed all started up at 50% charge six months after manufacture, no issues, errors, etc.

Now its time to see how they perform over the coming years.

 

[Ampster]

The inside wall of my garage where my SolArk is mounted has no room so I am going with the exterior enclosure just outside that wall. I like all the features which @glandpuck mentioned plus the integration with my SolArk.

 

[glandpuck]

Ever seen one of these?
Full cabinetry available too for outdoor installation.

 

[RTL44]

Does anyone think it should include a built=in Circuit Breaker, or is that unneccesary?