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denys avatar image
denys asked

How to connect 12v DC generator in parralel with Smart Solar controller

How to connect 12v DC generator in parralel with Smart Solar 12v to the battery to avoid conflicts during the charging ? Does anyone have drawing ?

battery charging
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mrseas avatar image mrseas commented ·
What "type" of DC generator are you talking about?  Vehicle alternator, a "solar generator", PV panels?  All can be directly connected to battery(s) in a parallel configuration but depending on the type of DC generator may need some "control/safety" devices added to the connection. 


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denys avatar image denys mrseas commented ·

Hi. Thanks for your reply. Im talking about Vehicle alternator, in my case small sailing boat outboard motor with alternator to DC 12v 5A. I would like to connect both PV 40 (60) watt + outboard generator to Li-ION batt 70 Ah. I have smart solar 75/15 for PV module and if I understand correctly will require BMS controller or so in between the battery and DC GEN which will protect the battery...

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Justin Cook avatar image
Justin Cook answered ·

@Denys, multiple charge sources can be parallel-connected to a single battery without any problem, no need for a diagram. Just make certain that under no circumstance do you exceed your battery's recommended maximum charge rate, and make certain that all circuits are fused or breakered as appropriate to wire gauge and expected current.

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Up to 8 attachments (including images) can be used with a maximum of 190.8 MiB each and 286.6 MiB total.

denys avatar image denys commented ·

Hi. Thanks for your reply. Im talking about Vehicle alternator, in my case small sailing boat outboard motor with alternator to DC 12v 5A. I would like to connect both PV 40 (60) watt + outboard generator to Li-ION batt 70 Ah. I have smart solar 75/15 for PV module and if I understand correctly will require BMS controller or so in between the battery and DC GEN which will protect the battery...

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