Vmaxtanks LFP27-2455 25.6V/55Ah LiFePO4 Deep Cycle Battery

Specs

Nominal Voltage 25.6V (3.2V/cell)
Rated Capacity (20h @ 25C) 55AH
Rated Energy 1408Wh
Output Voltage Range 20.0V-29.2V
Charging Voltage 28.8V - 29.2V (CC-CV)
Cut-Off Voltage 20.0V
Max. Constant Charging Current 55A 
Recommended Charging Current 10A-25A  (best @ 10A)
Recommended Charger Type CC-CV  until current <1.1A  (0.02C)
Max. Constant Discharge Current 55A
Max. 3sec Discharge Current 75A
Charging Temperature 0C ~ 45C (+32F~ +113F) 
Discharging Temperature -20C ~ 65C (-4F ~ +150F)
Storage Temperature -20C ~ 45C (-4F ~ +113F)
Efficiency >98%
Built-in BMS Yes
Over-Charge Voltage Protection Module: >30.8V, Cell: >3.85V
Over-Discharge Voltage Protection Module: <18.4V, Cell: <2.3V
Over-Charge Current Protection >57A w/15sec Delay 
Over-Discharge Current Protection >57A w/ 15sec Delay 
Short-Circuit Protection >400A
Cell Balance Passive, 60mA
Over-Temperature Protection-Charging <-5C ( 23F) , >65C (150F)
Over-Temperature Protection-Discharging <-20C (-4F), >65C (150F)
Cycle Life @80% DOD ~6000 @ 10A, 25C (77F)l
Cycle Life @90% DOD
 >4000  @ 10A, 25C (77F)
Design Life ~10 Years
Battery Case Material ABS
Dimensions L x W X H 12" x 6.7" x 8.2"
Terminals M8 Screw In (~5/16")
Weight 25lb

Vmaxtanks

Vmaxtanks LFP27-2455 25.6V/55Ah LiFePO4 Deep Cycle Battery

$649.99 $1,299.98
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Specs

Nominal Voltage 25.6V (3.2V/cell)
Rated Capacity (20h @ 25C) 55AH
Rated Energy 1408Wh
Output Voltage Range 20.0V-29.2V
Charging Voltage 28.8V - 29.2V (CC-CV)
Cut-Off Voltage 20.0V
Max. Constant Charging Current 55A 
Recommended Charging Current 10A-25A  (best @ 10A)
Recommended Charger Type CC-CV  until current <1.1A  (0.02C)
Max. Constant Discharge Current 55A
Max. 3sec Discharge Current 75A
Charging Temperature 0C ~ 45C (+32F~ +113F) 
Discharging Temperature -20C ~ 65C (-4F ~ +150F)
Storage Temperature -20C ~ 45C (-4F ~ +113F)
Efficiency >98%
Built-in BMS Yes
Over-Charge Voltage Protection Module: >30.8V, Cell: >3.85V
Over-Discharge Voltage Protection Module: <18.4V, Cell: <2.3V
Over-Charge Current Protection >57A w/15sec Delay 
Over-Discharge Current Protection >57A w/ 15sec Delay 
Short-Circuit Protection >400A
Cell Balance Passive, 60mA
Over-Temperature Protection-Charging <-5C ( 23F) , >65C (150F)
Over-Temperature Protection-Discharging <-20C (-4F), >65C (150F)
Cycle Life @80% DOD ~6000 @ 10A, 25C (77F)l
Cycle Life @90% DOD
 >4000  @ 10A, 25C (77F)
Design Life ~10 Years
Battery Case Material ABS
Dimensions L x W X H 12" x 6.7" x 8.2"
Terminals M8 Screw In (~5/16")
Weight 25lb

Maintenance Free

The Vmaxtanks LFP27-2455 weighs only 25 lb but is very efficient and durable. It can last up-to 10 years without having to worry about its maintenance. It has Built-in BMS offering voltage, current and temperature protection

Fast Charging Time

The Vmaxtanks LFP27-2455 charging time for a fully discharged 55Ah battery in only five and half hours.A variety of charging options below is also available: Use a VMAX AGM Charger* or a LiFePO4 Smart & Microprocessor controlled charger with the recommended specs for Vmaxtanks LFP27-2455 Compatible Lithium Charge controller if used in solar applications. Charge at Max Charging current only in situations when the fastest charging rate is needed. Not recommended on an ongoing basis.

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