| Bestgo
can offer 3 kinds of battery modules for customers to choose from, see below:
The
Plastic Block Module
The plastic block modules have a light weight and small size, cells are well
held and protected in an anti-frame plastic frame block with necessary foams
for vibration absorption. On the top of the block here is a plastic unit with
two metal sheets built in. Cell tabs will go through them and lay down for the
laser welding to firmly attach to the metal sheets for parallel configuration; here
are screw holes on metal sheets for busbar connections among modules. Every module
has an independent plastic lid for isolation. After blocks are assembled with busbars and wires, the plastic lid can be installed for isolation and
protection but will not disturb the busbar connections and wires.
The
Aluminum Block Module
The
aluminum block modules have more cells held in the
case with different arrangements for series and parallel configurations, like 3S4P, 4S3P, 2S6P, 3S5P, 5S5P etc. We do laser welding for cell tabs, use busbars for further connection among modules. The aluminum case can hold many more cells in quantity and resist outside force damage, aluminum has a light weight and is helpful for heat passing. It acts similar to plastic block modules but can deal with many more cells, so good for big battery packs which need many more cells.
Below are some examples. For example, if a module of BA16110 series
contains 12 of LiFePO4 3.2V30Ah cells arranged as 3S4P configuration, the model
type will be BA16110-F-3S04.
Below
are some of examples for reference.
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BA161110 Series
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With Li-NCM 3.7V37Ah cells
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With LiFePO4 3.2V30Ah cells
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Size: 161*110*270mm
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N-1S12
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1S12P
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3.7V444Ah
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F-1S12
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1S12P
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3.2V360Ah
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Weight: about 8.5 kg
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N-2S06
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2S6P
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7.4V222Ah
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F-2S06
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2S6P
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6.4V180Ah
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Case: aluminum type
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N-3S04
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3S4P
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11.1V148Ah
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F-3S04
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3S4P
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9.6V120Ah
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N-4S03
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4S3P
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14.8V111Ah
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F-4S03
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4S3P
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12.8V90Ah
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N-6S02
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6S2P
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22.2V74Ah
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F-6S02
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6S2P
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19.2V60Ah
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BA161132 Series
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With Li-NCM 3.2V37Ah cells
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With LiFePO4 3.2V30Ah cells
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Size: 161*132*270mm
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N-1S15
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1S15P
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3.7V555Ah
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F-1S15
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1S15P
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3.2V450Ah
|
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Weight: about 11 kg
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N-3S05
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3S5P
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11.1V185Ah
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F-3S05
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3S5P
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9.6V150Ah
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Case: aluminum type
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N-5S03
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5S3P
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18.5V111Ah
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F-5S03
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5S3P
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12.8V90Ah
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Here are more models not listed, please contact us for
details.
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The Cassette Sheet Module (only for 48Ah cells)
The cassette sheet modules hold the cells in
place with aluminum sheets like a sandwich. These aluminum sheets can help
cells improve heat transfer and enhance the strength of the structure. On both
ends of the module there are plastic units and a metal sheet which is used for
laser welding. Both parallel and series connections can be done directly on the
metal sheets. Bestgo can also separate the entire structure into several parts
then use the busbars for connection. This cassette structure is easy to
extend in the length direction. Bestgo’s cassette sheet module structure has a
low height (about 100mm) and can be extended. They are best suited for building
battery packs in a “skate structure” often used in the low-profile chassis of
electric vehicles.
Example
of cassette sheet modules in battery pack. 
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