Elec-trick-al

[duTch]

 Good stuff, I'm sure we'll hear if it goes belly up (which it won't)

[RoyC]

One last thing on this topic.  Are there any problems with parallel wiring two batteries of different ampage?  For example, can I put an 8Ah and a 13Ah together?

It will give 12 volt output as long as the batteries are fully charged. This kind of a setup gives more battery backup time but has its own disadvantages. Since batteries are connected in parallel, charge gets transferred from the battery with higher charge to lower even when the difference is very small. This keeps happening as long as there is a difference and since this involves change of chemical energy to electrical and back to chemical again, there will be multistage losses which reduces the final battery backup time.

So, it gives 12 volt but if you are planning to use this setup to increase the battery backup, see that you use up the charge as soon as possible to minimise losses.

https://www.homepower.com/articles/solar-electricity/design-installation/ask-experts-batteries-series-parallel

[Worty]

Cheers RoyC.  Incidentally, I was from Stafford before moving to West Yorks - which bit of Stafford are you from?

[duTch]

 

....One last thing on this topic.  Are there any problems with parallel wiring two batteries of different ampage?  For example, can I put an 8Ah and a 13Ah together?....

 I remembered you asked this...I've played around with solar panels a bit, so know enough to be more dangerous than the average bear but would say it may be successfully possible , but as Black-S says will try and balance each other, but I wonder if a couple of 'blocking diodes' wired the right way would stop that, only problem is it may stop them from charging, so a separate set of diodes would be needed- I guess they'd maybe be 'bypass doides'- but could get messy (but interesting)

 Probably easier to used the highest Amp-hour rated single battery you can find- and they're becoming scarcer in 6V ..... 

[Worty]

Eh, too p****d to read this now.  Need to sleep before big ride out tomorrow. Adieu 

[berger]

I resemble that remark,  i'm dioded out, and know a little bit of this and a little bit of that to be dangerous most days, especialy when engageing mouth before brain cell

[RoyC]

Cheers RoyC.  Incidentally, I was from Stafford before moving to West Yorks - which bit of Stafford are you from?

Sorry, Off topic.

Hi Wortluck,
Just found this.
I have sent you an email.

Roy.