“A123 SYSTEMS BATTERY MODULE”

From eBay

• BAE-200 module trays w/ A123 ANR26650M1A 26650 LiFePO4 cells
• What is entire enclosure called?
• Are they actually from buses? Can I find a picture?
• Acquired module + 1 spare module tray
• Datasheet
• These guys also have some

“BAE-200”

Summary:

• 12S8P
• 18.4 Ah (8 * 2.3)
• 39.6 V (12 * 3.3)

Cell summary
    2.3 Ah, 3.3 V
    Standard charge: 3A, 3.6V CCCV (45 min)
        1.3C
    Fast charge: 10A, 3.6V CCCV (15 min)
        4.3C
    CV charge voltage: 3.65 Volts (100%)
    CV charge voltage: 3.5 Volts (95%)
    Overcharge: 4.2 V absolute max
    Discharge: 10C okay
        23 A => 7.6 W / cell
    Max cont discharge: 70 A => 231 W / cell
    Max 10 s discharge: 120 A
    10C discharge cell life => 180 A max
        hmm wait thats higher than max current

Related to the HybriDrive accessory power system (APS)

• Module trays looks similar but shorter

Above: HybriDrive ® Energy Storage System (lithium-ion)

Graupner Polaron Pro

Open questions:

• PC data logging: log charge / discharge to files
  • Linux?
• How to hook up 12s?
  • 14s adapter not included
  • Assume connect both in series
• What is the motor sensor? (low priority / don't need)

Needs to support 12S8P

• “12s LiFe charger”

Have orignal BMS from batteries but may be too broken (many say DEAD) or proprietary to be useful. COTS MCU? X-ray PCBs?

Candidates

Graupner Polaron Pro

• Winner
• 14s (verified)
• Lots of nice features such as temperature protection
  • Compatible with the existing sensors?

hyperion 1420i

• DK: (discontinued, but really good)
• Link
• 14s max
• none on ebay

icharger 4010duo

• Link

Turnigy Reaktor 1000W 30A 1-10S Lipo Battery Balance Charger RC LiFe NiMh NiCd

• Link