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| a123:bae-200 [2016/06/25 03:48] – mcmaster | a123:bae-200 [2018/09/12 23:45] (current) – removed mcmaster | ||
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| - | ====== Module ====== | ||
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| - | "A123 SYSTEMS BATTERY MODULE" | ||
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| - | [[http:// | ||
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| - | * BAE-200 module trays w/ A123 ANR26650M1A 26650 LiFePO4 cells | ||
| - | * What is entire enclosure called? | ||
| - | * Are they actually from buses? | ||
| - | * Acquired module + 1 spare module tray | ||
| - | * [[http:// | ||
| - | * [[http:// | ||
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| - | Above: modules come from A123 grid storage ([[http:// | ||
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| - | [[http:// | ||
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| - | vs B | ||
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| - | * Several parties have warned A cells are dangerous but haven' | ||
| - | * [[http:// | ||
| - | * Same cells as Fisker incident? | ||
| - | * 2016-04-09: asked my A123 contact and he says they are fine | ||
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| - | ====== Module tray ====== | ||
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| - | " | ||
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| - | Summary: | ||
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| - | * 12S8P | ||
| - | * 18.4 Ah (8 %%*%% 2.3) | ||
| - | * Charge: 1.3 %%*%% 18.4 = 24 A max | ||
| - | * Assuming perfect balance…derate? | ||
| - | * 39.6 V (12 %%*%% 3.3) | ||
| - | * Bus thread: 10-32 x 0.25 (through) | ||
| - | * Balancer thread: 6-32 x 0.25 (through) | ||
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| - | Rule of thumb terminate at 0.05C? | ||
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| - | * 18.4 Ah pack ⇒ terminate at 920 mA | ||
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| - | ====== Cell ====== | ||
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| - | 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 | ||
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| - | ====== BMS ====== | ||
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| - | This unit evidently controls the module trays. | ||
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| - | ====== HybriDrive ====== | ||
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| - | Related to the HybriDrive accessory power system (APS) | ||
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| - | * Module trays looks similar but shorter | ||
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| - | Above: [[https:// | ||
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| - | ====== Original BMS ====== | ||
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| - | ====== COTS charger ====== | ||
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| - | Graupner Polaron Pro | ||
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| - | Open questions: | ||
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| - | * PC data logging: log charge / discharge to files | ||
| - | * Linux? | ||
| - | * VCP driver => serial port | ||
| - | * How to hook up 12s? | ||
| - | * 14s adapter not included | ||
| - | * Assume connect both in series | ||
| - | * What is the motor sensor? (low priority / don't need) | ||
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| - | ===== Selection ===== | ||
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| - | Needs to support 12S8P | ||
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| - | * "12s LiFe charger" | ||
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| - | Have orignal BMS from batteries but may be too broken (many say DEAD) or proprietary to be useful. | ||
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| - | Candidates | ||
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| - | Graupner Polaron Pro | ||
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| - | * Winner | ||
| - | * 14s (verified) | ||
| - | * Lots of nice features such as temperature protection | ||
| - | * Compatible with the existing sensors? | ||
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| - | hyperion 1420i | ||
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| - | * DK: (discontinued, | ||
| - | * [[http:// | ||
| - | * 14s max | ||
| - | * none on ebay | ||
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| - | icharger 4010duo | ||
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| - | * [[http:// | ||
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| - | Turnigy Reaktor 1000W 30A 1-10S Lipo Battery Balance Charger RC LiFe NiMh NiCd | ||
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| - | * [[http:// | ||