Description
This listing is for 4 x 12V 250AH (3kWH) batteries which can be connected in series to make 48V 250Ah, 24V 500Ah, or 12V 1000Ah, or buy two of these to make 48V 250Ah (24 kw)
We parallel these with lithium batteries to give maxium surge capability
Specifications
Nominal Voltage 12V
Nominal Capacity (10HR)250AH
Dimensions
Length 20.86 inches
Width 10.70inches
Container Height 10.62 inches
Approx Weight 161 lbs
Terminal M8
Container Material ABS
Capacity
264AH / 5.5A (20hr, 1.80V / cell, 25℃ / 77℉)
240AH / 10.0A (10hr, 1.80V / cell, 25℃ / 77℉)
192AH / 17.0A (5hr, 1.75V / cell, 25℃ / 77℉)
Cranking Amps -40°C (-40°F) ⌁ +70°C (+158°F) 1000 – 1500
Reserve Capacity (@ 25A) 185 Minutes
Reserve Capacity (@ 75A) 47 Minutes
Max. Discharge Current 800A (8.0C) for 10 seconds
Internal Resistance Approx 2mΩ-5mΩ
Operating Temp. Range
Discharge: -40℃⌁70℃ (-40℉⌁158℉)
Charge: -20℃⌁50℃ (-20℉⌁122℉)
Storage: -20℃⌁50℃ (-20℉⌁122℉)
Depth of Discharge (DOD)
Max. With Immediate Recharge 100%
Recommended Max. 90%
Recommended for Extended Battery Life 50%
Charge
Cycle Use
Float Use
Regular Charge (recommended)
Quick Charge
Fast Charge
Ultra-Fast Charge
Recommended Charge Current (String)
Maximum Charge Current (String)
Self Discharge
2.45V/cell (Top Recommended
Charge Voltage)
2.27V/cell @ 0.6C
24A (0.1C) (10.5 Hours)
72A (0.3C) (3.2 Hours)
240A (1.0C) (1.1 Hours)
720A (3.0C) (25 Minutes)
self discharge
15⌁20% After 12 Months over 2 years @ 25C(77F)
Warranty: 5 years.
Warranty applies to systems which have a battery capacity of at least 2 x daily consumption.
example, if daily use is 12kwh, a minimum requirement of 24kwh capacity is expected
Through experience, we find that ANY battery chemistry, when cycled 100% every day with high charge and discharge currents has a limited lifespan, some LiFEPo4 batteries make it to about 3 months when worked hard
