In some high current and high reliability applications, crimped terminals are used due to the possibility of heat failure (melting) of soldered connections. Crimping provides an air-tight mechanical connection, beside electrical conductivity, between the connector pins and wire strands.
I once worked in a cable area that manufactured coax data cables for computer terminals, and the pull strength on the crimped connector was higher than the weight of the terminal, which meant that you could actually lift the unit by the data cable.
In any case, you may wish to check with manufacturer to verify that this is OK. There may be an specific reason that they used crimped instead of soldered terminals.
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