hi I have a relatively weak car battery, the serial battery with 28 AH and the below mentioned components is installed. – that doesn’t go well for long is certainly out of question, but could I deal with the problem (flattering light, falling in-board voltage etc) provisionally (or delay) by using end stages with regulated power supplies? I don’t want the bat to give up her mind in 2 weeks, she is from 1999 and has had problems in winter without installation already the engine start, now eats of course even more critical. mfg