A "12V" is charged at about 14.4V. That's part of the problem.
MPPT is only going to gain about 20~25%. G-
Normally I would have thought that 400W was about on the low limit to justify the extra cost.
Don't get too excited, it will be rare that you see 200W from a 200W panel. As Ghurd said the battery voltage will be above 12v by a fair bit and this knocks the current down so your 16A is most likely going to be nearer 12A.
The final stage of the charging process can not be rushed, batteries just won't accept it.
Flux[ Parent ]
