Wat is beter?

"Kruimeltje" schreef in bericht news:j8ch9v$3tf$ snipped-for-privacy@dont-email.me...

Wat is beter? Dit:

o_______________o_______________o_______________o___________o + | | | | _|_ _|_ _|_ _|_ _| |_ _| |_ _| |_ _| |_ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |_______| |_______| |_______| |_______| | | | | | | | | | | | | _|_ _|_ _|_ _|_ _| |_ _| |_ _| |_ _| |_ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |_______| |_______| |_______| |_______| | | | | | | | | | | | | _|_ _|_ _|_ _|_ _| |_ _| |_ _| |_ _| |_ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |_______| |_______| |_______| |_______| | | | | | | | | | | | | _|_ _|_ _|_ _|_ _| |_ _| |_ _| |_ _| |_ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |_______| |_______| |_______| |_______| | | | | | | | | o_______________o_______________o_______________o___________o -

Of dit:

o_______________o_______________o_______________o___________o + | | | | _|_ _|_ _|_ _|_ _| |_ _| |_ _| |_ _| |_ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |_______| |_______| |_______| |_______| | | | | | | | | o_______________o_______________o_______________o | | | | _|_ _|_ _|_ _|_ _| |_ _| |_ _| |_ _| |_ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |_______| |_______| |_______| |_______| | | | | | | | | o_______________o_______________o_______________o | | | | _|_ _|_ _|_ _|_ _| |_ _| |_ _| |_ _| |_ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |_______| |_______| |_______| |_______| | | | | | | | | o_______________o_______________o_______________o | | | | _|_ _|_ _|_ _|_ _| |_ _| |_ _| |_ _| |_ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |_______| |_______| |_______| |_______| | | | | | | | | o_______________o_______________o_______________o___________o -

Beste,

Ik zou gaan voor de eerste opstelling. Alle batterijen mogen nog identiek zijn, maar na verloop van tijd kan er altijd eentje sneller van karakteristiek of inwendige weerstand veranderen dan de andere. In de tweede schakeling kan die dan de overige 3 negatief gaan beïnvloeden en eventueel deze 3 sneller doen ontladen. In de eerste schakeling staan er meerdere in serie, waardoor dit effekt sterk zal verminderen.

Frank

Wat voor batterijen zijn het? Batterijen parallel en in serie is vragen om problemen. Je kunt beter een hele rits in serie zetten (maar niet teveel!) en dan met een schakelende voeding de spanning naar beneden brengen of een aantal Li-ion accu's parallel (eventueel 2 a 3 cellen in serie) en dan de spanning met een schakelende voeding omhoog brengen.