Battery Cell Parallel Configuration Examples

When you cable multiple cycler channels in parallel, the parallel configuration options are limited by the cycler. The battery application does not limit how many channels you can cable in a parallel configuration

When configuring channels in parallel in the Channel Manager (CHAMAN) module, the primary slot must be the first slot in the parallel group. The following parallel configuration types are possible:

  • Within cycler—The cycler channels that you connect in parallel belong to the same cycler.
  • Cross cycler—The cycler channels that you connect in parallel are aligned across cyclers. For example, you might connect the second channel in parallel in each of a set of cyclers.

    • You can configure tests using only one parallel configuration type or using both parallel configuration types.

    Within-Cycler Configuration Examples

    Each row of the CHAMAN module supports a within-cycler parallel configuration.

    For example, a test station might have four cyclers with three channels each. The test station might also have a 12-slot climate chamber. The following figure shows the possible within-cycler parallel configurations for this example test station. Red bars indicate possible parallel configurations. The stars () indicate the primary slot for each parallel configuration.

    Figure 6. Within-Cycler Parallel Configurations

    The following table describes three examples of within-cycler parallel configurations.

    Table 9. Within-Cycler Configuration Examples
    Cell Requiring Additional Power Slots in Parallel Primary Slot(s) Slots Available for Individual Tests or Parallel Configuration Description
    Slot_01 requires power from two additional cycler channels

    Slot_01, Slot_02, Slot_03

    		 Slot_01 Slot_04–Slot_12
    • All three channels from one cycler are used for the parallel configuration.
    • Channels in the other cyclers are available for individual tests or other parallel configurations.
    Slot_01 and Slot _05 require power from one additional cycler channel each
    • Slot_01, Slot_02
    • Slot_05, Slot_06
    • Slot_01
    • Slot_05
    • Slot_03–Slot_04
    • Slot_06–Slot_12
    • Two channels from one cycler are used for the Slot_01 parallel configuration. The third channel is available for an individual test.
    • Two channels from another cycler are used for the Slot_05 parallel configuration. The third channel is available for an individual test.
    • The channels in the other cyclers are available for individual tests or another parallel configuration.
    Slot _01, Slot_04, Slot_07, and Slot_10 require power from two additional cycler channels each
    • Slot_01, Slot_02, Slot_03
    • Slot_04, Slot_05, Slot_06
    • Slot_07, Slot_08, Slot_09
    • Slot_10, Slot_11, Slot_12
    • Slot_01
    • Slot_04
    • Slot_07
    • Slot_10
    		 None
    • One cycler is used per parallel configuration.
    • No additional channels are available for individual tests or another parallel configuration.

    Cross-Cycler Configuration Examples

    When using a cross-cycler parallel configuration, combine slots according to the number of channels in the cycler.

    For example, a test station might have four cyclers with three channels each. The test station might also have a 12-slot climate chamber. The following figure shows the possible cross-cycler parallel configurations for this example test station. Red bars indicate possible parallel configurations. The stars () indicate the primary slot for each parallel configuration.

    Figure 7. Cross-Cycler Parallel Configurations

    In this example, each cycler had three channels. Therefore, the parallel configurations are determined by the following process:

    1. Start with a primary slot, which accounts for one cycler channel.
    2. Skip three slots, which accounts for equivalent channels from the other three cyclers.
    3. Reserve the next slot for the parallel configuration.

    The following table describes examples of cross-cycler parallel configurations.

    Table 10. Cross-Cycler Configuration Examples
    Cell Requiring Additional Power Slots in Parallel Primary Slot(s) Slots Available for Individual Tests or Parallel Configuration Description
    Slot_01 requires power from three additional cycler channels

    Slot_01, Slot_04, Slot_07, Slot_10

    		Slot_01 Slot_02, Slot_03, Slot_05, Slot_06, Slot_08, Slot_09, Slot_11, Slot_12
    • Equivalent channels in the four cyclers are used for the parallel configuration. For example, the configuration might use the first channel in each cycler.
    • Channels in the other cyclers are available for individual tests or other parallel configurations.
    Slot_01 and Slot _08 require power from one additional cycler channel each
    • Slot_01, Slot_04
    • Slot_08, Slot_11
    • Slot_01
    • Slot_08
    		 Slot_02, Slot_03, Slot_05, Slot_06, Slot_07, Slot_09, Slot_10, Slot_12
    • Equivalent channels in two cyclers are used for the Slot_01 configuration. For example, the configuration might use the first channel in two cyclers. Equivalent channels from the other cyclers are available for individual tests or additional parallel configuration.
    • Equivalent channels in two cyclers are used for the Slot_08 configuration. For example, the configuration might use the second channel in two cyclers. Equivalent channels from the other two cyclers are available for individual tests or additional parallel configuration.
    • Other channels are available for individual tests or another parallel configuration.
    Slot_01, Slot_02, and Slot_03 each require power from three additional cycler channels each
    • Slot_01, Slot_04, Slot_07, Slot_10
    • Slot_02, Slot_05, Slot_08, Slot_11
    • Slot_03, Slot_06, Slot_09, Slot_12
    • Slot_01
    • Slot_02
    • Slot_03
    		 None
    • Each parallel configuration uses equivalent channels in the four cyclers. For example, the Slot_01 configuration might use the first channel in each cycler. The Slot_02 configuration might use the second channel in each cycler. The Slot_03 configuration might use the third channel in each cycler.
    • No additional channels are available for individual tests or another parallel configuration.