should at least be pretty decent, the spv70 is a good battery in its own right and iirc is bigger than a kinetik 1400..I just got done yesterday messing with 2 sp1000's and they didnt seem any better than the version 1 sp1000 I had. SPV70 id bigger with higher aH than a sp1000 but my lights dim with the sp1000 in under 1 hours worth of use. Last year the SPV in cooler weather performed better than sp1000. Reason I bring that up is the spv70 is actually rated lower than the sp1000 by about 300 watts