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Forum Index : Solar : batteries in parrell

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bobt
Newbie

Joined: 26/12/2009
Location: Australia
Posts: 17

Posted: 02:03am 01 Jun 2010

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g'day everyone,

Im just about to buy 2 new 95a/h deep cycle batteries and i want to put them
into parrell wiring from the regulator.

1)will my 80 watt solar panels charge both batteries at the same time in parrell?

or

2)do i have to separate both batteries to recharge individually?

3)would a new regulator with mppt be better to charge both batteries
at the same time? over the basic regulator that came with my system ?

cheers bob

VK4AYQ
Guru

Joined: 02/12/2009
Location: Australia
Posts: 2539

Posted: 06:38am 01 Jun 2010

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Hi Bob

I am assuming that the batteries are the same.

1. yes

2. no

3. A MPPT regulator will give you more charge from your panel but your basic regulator will work OK but MPPT will put 20-30 percent more into the battery say from 4.5 amps to 6 amps.

If you go to the expense of getting a MPPT regulator be sure to get one with extra capacity so you can expand your system later on.

All the best

Bob

Foolin Around

bobt
Newbie

Joined: 26/12/2009
Location: Australia
Posts: 17

Posted: 06:47am 02 Jun 2010

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g'day everyone,

thanks for your reply vk4ayq,
I wanted to be sure before going ahead with the batteries in parrell.

cheers
bobt

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