What's in a name? With Industrial/Forklift batteries everything you need to know.

I had some blood flow to my brain today (LOL) so I thought I'd share what I'm remembering while I remember it. If this is old news to everybody, or I wrote something just like this before, please disregard it.
Industrial batteries will often be named as the one in my profile pic 24-125-11 (NC-S-P)
The forklift battery is a large metal case that contains this number of cells interconnected by plates - usually, the cells are individually replaceable, and one or two-man carryable (individual cells). Though the case is often made of 1/4-3/8" steel you cannot just hook a chain to the eyes at either end and lift! Without a distributed lifting bar the chain will just fold the eyes over like ears before you ever get it off the ground.
NC S P
We can break that down, the first number we'll refer to as 'NC' is the number of cells (mine is 24)
The next number we'll refer to as 'S' is the AH of one positive plate, the larger the plate the heavier the battery is for a given number of cells (mine is 125)
The last number we'll refer to as 'P' is the number of positive plates per cell (always an odd number as there is one more positive plate per cell than negative) the more plates per cell the heavier the battery is. (mine is 11)
In the equation below we take that odd number and subtract one, then divide by two to illustrate number of pairs of plates per cell then multiply it by the size of one positive plate 125
P=Number of positive plates
S=Size in AH of one positive plate
AH=Rating of battery at C-6 discharge rate
V=Nominal voltage of the battery V=CN2
NC=Number of cells total
AH=((P-1)/2)S
V=NCx2
Mine at 24 plates is 48 volts and with 125 sized plates, and eleven of them
Eleven plates minus one is ten, divided by two is five multiplied by one hundred twenty-five AH per plate for my particular battery = 625
So My battery is 48V 625AH at the C6 discharge rate and happens to weigh about 2200 pounds, minus 100 pounds or so for the case figure that each cell probably weighs about 87 pounds.
they come in lots of sizes from 6-55-5 (12V-110AH) all the way up to 36-170-27 (72V-2210AH) and probably way bigger in industrial applications
55AH plates are 17-1/2 inches tall (low profile)
75AH, 85AH, and 100AH plates are 27 inches tall (standard)
100AH(tall), 110AH, 125AH, 140AH and 155AH plates are 31 inches tall (tall)
170AH plates are 31 inches tall but are wider (wide tall)
Plate numbers range from 5 to 27 *maybe 31
Number of cells
6=12V
9=18V
12=24V
18=36V
24=48V
36=72V
Industrial batteries will often be named as the one in my profile pic 24-125-11 (NC-S-P)
The forklift battery is a large metal case that contains this number of cells interconnected by plates - usually, the cells are individually replaceable, and one or two-man carryable (individual cells). Though the case is often made of 1/4-3/8" steel you cannot just hook a chain to the eyes at either end and lift! Without a distributed lifting bar the chain will just fold the eyes over like ears before you ever get it off the ground.
NC S P
We can break that down, the first number we'll refer to as 'NC' is the number of cells (mine is 24)
The next number we'll refer to as 'S' is the AH of one positive plate, the larger the plate the heavier the battery is for a given number of cells (mine is 125)
The last number we'll refer to as 'P' is the number of positive plates per cell (always an odd number as there is one more positive plate per cell than negative) the more plates per cell the heavier the battery is. (mine is 11)
In the equation below we take that odd number and subtract one, then divide by two to illustrate number of pairs of plates per cell then multiply it by the size of one positive plate 125
P=Number of positive plates
S=Size in AH of one positive plate
AH=Rating of battery at C-6 discharge rate
V=Nominal voltage of the battery V=CN2
NC=Number of cells total
AH=((P-1)/2)S
V=NCx2
Mine at 24 plates is 48 volts and with 125 sized plates, and eleven of them
Eleven plates minus one is ten, divided by two is five multiplied by one hundred twenty-five AH per plate for my particular battery = 625
So My battery is 48V 625AH at the C6 discharge rate and happens to weigh about 2200 pounds, minus 100 pounds or so for the case figure that each cell probably weighs about 87 pounds.
they come in lots of sizes from 6-55-5 (12V-110AH) all the way up to 36-170-27 (72V-2210AH) and probably way bigger in industrial applications
55AH plates are 17-1/2 inches tall (low profile)
75AH, 85AH, and 100AH plates are 27 inches tall (standard)
100AH(tall), 110AH, 125AH, 140AH and 155AH plates are 31 inches tall (tall)
170AH plates are 31 inches tall but are wider (wide tall)
Plate numbers range from 5 to 27 *maybe 31
Number of cells
6=12V
9=18V
12=24V
18=36V
24=48V
36=72V
SMA Solar Sunny Island SI6048
JA Solar 330W 'Cypress series' 72 cell panels (18)
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MidNite Solar MODBUS/Canbus communications adaptor for Sunny Island
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MidNite Solar WhizBang Jr current sensor
MidNite Solar MNSPD300V surge protection device (3)
MidNite Solar MNSHUNT 50mv/500A DC shunt
MidNite Solar MNSOB3R-4P PV array shut off box
MidNite Solar Birdhouse 1 RSS initiator
MidNite Solar Battery disconnect module
MidNite Solar Disconnect PSB
Atkinson GSCM mini-i generator start module
Cummins Onan Quiet Diesel QD-8000 8HDKAK diesel inverter generator
Cummins Onan Quiet Diesel QD-3200 3.2HDZAA diesel cycloconverter generator
24-125-11 Monterey Industrial 'Big Sur' 986Ah 48V battery
285-gallon diesel fuel tank
Off the grid on the PNW coast
JA Solar 330W 'Cypress series' 72 cell panels (18)
MidNite Solar Classic 250 MPPT charge controllers (2)
MidNite Solar MODBUS/Canbus communications adaptor for Sunny Island
MidNite Solar SMA-OG E-panel
MidNite Solar WhizBang Jr current sensor
MidNite Solar MNSPD300V surge protection device (3)
MidNite Solar MNSHUNT 50mv/500A DC shunt
MidNite Solar MNSOB3R-4P PV array shut off box
MidNite Solar Birdhouse 1 RSS initiator
MidNite Solar Battery disconnect module
MidNite Solar Disconnect PSB
Atkinson GSCM mini-i generator start module
Cummins Onan Quiet Diesel QD-8000 8HDKAK diesel inverter generator
Cummins Onan Quiet Diesel QD-3200 3.2HDZAA diesel cycloconverter generator
24-125-11 Monterey Industrial 'Big Sur' 986Ah 48V battery
285-gallon diesel fuel tank
Off the grid on the PNW coast
Comments
JA Solar 330W 'Cypress series' 72 cell panels (18)
MidNite Solar Classic 250 MPPT charge controllers (2)
MidNite Solar MODBUS/Canbus communications adaptor for Sunny Island
MidNite Solar SMA-OG E-panel
MidNite Solar WhizBang Jr current sensor
MidNite Solar MNSPD300V surge protection device (3)
MidNite Solar MNSHUNT 50mv/500A DC shunt
MidNite Solar MNSOB3R-4P PV array shut off box
MidNite Solar Birdhouse 1 RSS initiator
MidNite Solar Battery disconnect module
MidNite Solar Disconnect PSB
Atkinson GSCM mini-i generator start module
Cummins Onan Quiet Diesel QD-8000 8HDKAK diesel inverter generator
Cummins Onan Quiet Diesel QD-3200 3.2HDZAA diesel cycloconverter generator
24-125-11 Monterey Industrial 'Big Sur' 986Ah 48V battery
285-gallon diesel fuel tank
Off the grid on the PNW coast
Sincerely,
-Bill
Also if you are ordering a new battery, you can have them put on 'flags' rather than wires. This can help with some installations and remove an unseen connection.
JA Solar 330W 'Cypress series' 72 cell panels (18)
MidNite Solar Classic 250 MPPT charge controllers (2)
MidNite Solar MODBUS/Canbus communications adaptor for Sunny Island
MidNite Solar SMA-OG E-panel
MidNite Solar WhizBang Jr current sensor
MidNite Solar MNSPD300V surge protection device (3)
MidNite Solar MNSHUNT 50mv/500A DC shunt
MidNite Solar MNSOB3R-4P PV array shut off box
MidNite Solar Birdhouse 1 RSS initiator
MidNite Solar Battery disconnect module
MidNite Solar Disconnect PSB
Atkinson GSCM mini-i generator start module
Cummins Onan Quiet Diesel QD-8000 8HDKAK diesel inverter generator
Cummins Onan Quiet Diesel QD-3200 3.2HDZAA diesel cycloconverter generator
24-125-11 Monterey Industrial 'Big Sur' 986Ah 48V battery
285-gallon diesel fuel tank
Off the grid on the PNW coast
http://www.montereybattery.com/
-Bill
JA Solar 330W 'Cypress series' 72 cell panels (18)
MidNite Solar Classic 250 MPPT charge controllers (2)
MidNite Solar MODBUS/Canbus communications adaptor for Sunny Island
MidNite Solar SMA-OG E-panel
MidNite Solar WhizBang Jr current sensor
MidNite Solar MNSPD300V surge protection device (3)
MidNite Solar MNSHUNT 50mv/500A DC shunt
MidNite Solar MNSOB3R-4P PV array shut off box
MidNite Solar Birdhouse 1 RSS initiator
MidNite Solar Battery disconnect module
MidNite Solar Disconnect PSB
Atkinson GSCM mini-i generator start module
Cummins Onan Quiet Diesel QD-8000 8HDKAK diesel inverter generator
Cummins Onan Quiet Diesel QD-3200 3.2HDZAA diesel cycloconverter generator
24-125-11 Monterey Industrial 'Big Sur' 986Ah 48V battery
285-gallon diesel fuel tank
Off the grid on the PNW coast
JA Solar 330W 'Cypress series' 72 cell panels (18)
MidNite Solar Classic 250 MPPT charge controllers (2)
MidNite Solar MODBUS/Canbus communications adaptor for Sunny Island
MidNite Solar SMA-OG E-panel
MidNite Solar WhizBang Jr current sensor
MidNite Solar MNSPD300V surge protection device (3)
MidNite Solar MNSHUNT 50mv/500A DC shunt
MidNite Solar MNSOB3R-4P PV array shut off box
MidNite Solar Birdhouse 1 RSS initiator
MidNite Solar Battery disconnect module
MidNite Solar Disconnect PSB
Atkinson GSCM mini-i generator start module
Cummins Onan Quiet Diesel QD-8000 8HDKAK diesel inverter generator
Cummins Onan Quiet Diesel QD-3200 3.2HDZAA diesel cycloconverter generator
24-125-11 Monterey Industrial 'Big Sur' 986Ah 48V battery
285-gallon diesel fuel tank
Off the grid on the PNW coast
I still think forklift batteries are the best value for long term storage. lithium will likely come down enough to make them a better value in the next few years. I'm 9+ years now on mine, it's doing very well for the abuse it's taken and allowed my system and situation to produce energy below 30 cents a kWh (including a large percent of energy used in essence directly from the array.
JA Solar 330W 'Cypress series' 72 cell panels (18)
MidNite Solar Classic 250 MPPT charge controllers (2)
MidNite Solar MODBUS/Canbus communications adaptor for Sunny Island
MidNite Solar SMA-OG E-panel
MidNite Solar WhizBang Jr current sensor
MidNite Solar MNSPD300V surge protection device (3)
MidNite Solar MNSHUNT 50mv/500A DC shunt
MidNite Solar MNSOB3R-4P PV array shut off box
MidNite Solar Birdhouse 1 RSS initiator
MidNite Solar Battery disconnect module
MidNite Solar Disconnect PSB
Atkinson GSCM mini-i generator start module
Cummins Onan Quiet Diesel QD-8000 8HDKAK diesel inverter generator
Cummins Onan Quiet Diesel QD-3200 3.2HDZAA diesel cycloconverter generator
24-125-11 Monterey Industrial 'Big Sur' 986Ah 48V battery
285-gallon diesel fuel tank
Off the grid on the PNW coast
I kept a copy of the contract which stated a total price "including all taxes" as they were shipping it, they were responsible for state sales tax, which I don't think got paid.
...but once we got settled, it was made and delivered inside of 10 days, I want to say a week later. I hadn't been warned about their over stating the 20hr capacity, but it is pretty easy to see when you compare to other tall cell batteries hourly rates...
JA Solar 330W 'Cypress series' 72 cell panels (18)
MidNite Solar Classic 250 MPPT charge controllers (2)
MidNite Solar MODBUS/Canbus communications adaptor for Sunny Island
MidNite Solar SMA-OG E-panel
MidNite Solar WhizBang Jr current sensor
MidNite Solar MNSPD300V surge protection device (3)
MidNite Solar MNSHUNT 50mv/500A DC shunt
MidNite Solar MNSOB3R-4P PV array shut off box
MidNite Solar Birdhouse 1 RSS initiator
MidNite Solar Battery disconnect module
MidNite Solar Disconnect PSB
Atkinson GSCM mini-i generator start module
Cummins Onan Quiet Diesel QD-8000 8HDKAK diesel inverter generator
Cummins Onan Quiet Diesel QD-3200 3.2HDZAA diesel cycloconverter generator
24-125-11 Monterey Industrial 'Big Sur' 986Ah 48V battery
285-gallon diesel fuel tank
Off the grid on the PNW coast
Here's a link to a thread where I posted some conversions in the 2 reply, highest I found was 1.4x;
https://forum.solar-electric.com/discussion/354176/forklift-battery-sizing-and-prolonging-life
Somewhere I had hunted down Crown's conversion multiplier, I can't find Crown's site specs right now, but from a retailer, they rate their 12-125-13 (a 750 ah at 6 hr rate) as a 935 at a 20 hour rate, a 1.25x multiplier;
https://readymaderesources.com/product/crown-12-125-13-industrial-fork-lift-battery-24-volt-935-ah-call-for-shipping/
GB rates their 12-125-13 at 1182 ah 20hr rate.
JA Solar 330W 'Cypress series' 72 cell panels (18)
MidNite Solar Classic 250 MPPT charge controllers (2)
MidNite Solar MODBUS/Canbus communications adaptor for Sunny Island
MidNite Solar SMA-OG E-panel
MidNite Solar WhizBang Jr current sensor
MidNite Solar MNSPD300V surge protection device (3)
MidNite Solar MNSHUNT 50mv/500A DC shunt
MidNite Solar MNSOB3R-4P PV array shut off box
MidNite Solar Birdhouse 1 RSS initiator
MidNite Solar Battery disconnect module
MidNite Solar Disconnect PSB
Atkinson GSCM mini-i generator start module
Cummins Onan Quiet Diesel QD-8000 8HDKAK diesel inverter generator
Cummins Onan Quiet Diesel QD-3200 3.2HDZAA diesel cycloconverter generator
24-125-11 Monterey Industrial 'Big Sur' 986Ah 48V battery
285-gallon diesel fuel tank
Off the grid on the PNW coast
JA Solar 330W 'Cypress series' 72 cell panels (18)
MidNite Solar Classic 250 MPPT charge controllers (2)
MidNite Solar MODBUS/Canbus communications adaptor for Sunny Island
MidNite Solar SMA-OG E-panel
MidNite Solar WhizBang Jr current sensor
MidNite Solar MNSPD300V surge protection device (3)
MidNite Solar MNSHUNT 50mv/500A DC shunt
MidNite Solar MNSOB3R-4P PV array shut off box
MidNite Solar Birdhouse 1 RSS initiator
MidNite Solar Battery disconnect module
MidNite Solar Disconnect PSB
Atkinson GSCM mini-i generator start module
Cummins Onan Quiet Diesel QD-8000 8HDKAK diesel inverter generator
Cummins Onan Quiet Diesel QD-3200 3.2HDZAA diesel cycloconverter generator
24-125-11 Monterey Industrial 'Big Sur' 986Ah 48V battery
285-gallon diesel fuel tank
Off the grid on the PNW coast