No response from the Boscam factory regarding battery replacement. In fact, no response from them period.
I was able to source the correct replacement battery from someone else though, thru a roundabout way (not from the usual supply house suspects). The factory has gone to a different size battery (physically larger but thinner), but still physically smaller than anything equivelent on the market. With the larger battery, simple case internal mods need to be made for it to fit.
I bought some extra batteries for myself. I do have some spares I will part with for $25 each plus postage.