My Iota has the IQ-4 Smart Charger...I can only assume that it has that feature, then.
After checking the link, this Smart Charge feature doesn't have an temperature specific sensor attached to the battery. It seems that only the voltage is monitored, not the temp. You might want to contact Iota tech support and check out whether they do use a temperature compensation factor in their smart charging equation.
Many cruising sailboats, especially ones that sail in tropical waters (80+ degrees) use a charger that employs this temp compensation feature. We have also heard of a few exploding batteries on sailboats, brought about by overcharging & excessive heat.
When I put the VM on the battery, it read 13.94v. As soon as I take the Iota out of the equation, the voltage drops down to 8.62v.
Not good! When the charging source is removed from the battery bank, healthy batteries, without a load on, should float down to around 12.7-12.8 volts. I'm looking for a chart that we had that displays battery voltage at rest (i.e. no load, no charge) vs. battery condition/life.
If you poke around Ample Power's website Ample Power Primer
they have a lot of information regarding battery charging in this primer, including testing batteries, charging basics, etc. We know the people behind this company & they have experience, besides in electrical engineering, in living on 12 V, both on sailboats & RV's.