These modules will have the Valance warranty sticker over the BMS cover intact, none of them were opened or reset. These modules were not bad ones we restored, they were always good that we have maintained. The BMS does draw power from the module during normal operation. If left in storage for over a month, keep an eye on the voltage and top off the battery periodically.
These batteries were used in a high voltage application but you can series and parallel them however needed. Make sure they are all fully charged before you series them, and at least the same voltage before you parallel them.
NOTE: Some battery modules may come with cracks around the terminals.
LED indicator guide
Green: all good.
Yellow(looks like red and green): Charge level less than %20SoC recharge immediately, or battery is near thermal limit and is close to overheating.
Red: Low Charge level or issue with the battery or BMS.
No Light: Battery charge depleted to %0 and BMS shut off.
BMS will automatically balance the cells within one module during the top of the charge. Will not balance between modules when hooked up in series, only in parallel.
Lithium Werks provides safe, reliable and mobile energy solutions for energy storage and transportation. The U27-24XP is a high performance, 24 volt battery, built on a patented Lithium Iron Phosphate chemistry platform. Customers now have a choice of a 24 volt battery in a Group 27 size case providing over 1.8 kWh. The U27-24XP is ideal for material handling, stationary energy storage, and commercial EV or marine applications. The module’s inherent safety, long cycle life, and zero maintenance offers end-users another alternative to lead acid by replacing with our reliable lithium ion solution.
Specifications
Voltage (nominal) 25.6 V
Capacity @ C/5, 25 °C (typical) 72 Ah (New)
Energy 1.84 kWh (New)
Discharge Cont./Peak (30 sec) 144 A / 216 A
Discharge Cutoff Voltage 20 V
Recommended Charge Voltage 29.2 V
Charge Float Voltage Range 27.6 – 29.2 V
Recommended Charge CCCV ≤ 36 A to 29.2 V
Discharge Temperature -10 °C to 50 °C
Charge Temperature 0 °C to 45 °C
Self Discharge @ 25 °C < 2% per month
Terminal Hardware M8 x 1.25
Terminal Torque 25 Nm or 222 in-lbs
Plastic Case Flame Retardant
IP Rating IP56
Features
• >4000 cycles at 80% DOD
• Create systems 12 – 1000 V
• Series and/or parallel operation
• Automatic cell monitoring & balancing
• Temperature monitoring of cells
• Rugged mechanical design
• Thread locking feature
• Footprint of Group 27 lead acid case
• Maintenance-free
• No hydrogen generation or gassing
Height: (excluding bolts) 225 mm 8.86”
Width: 172 mm 6.77”
Length: 306 mm 12.0”
Weight: 19.2 ± 0.1 kg 42.2 lbs
Cell Configuration: 8IFR27/66-22
Shipping: Free – the cost of shipping to you is included with your purchase. Freight to business address or pick up from a local freight hub only.
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