Advise load output MPPT 75/10. On which pins should I place the jumper if I want to charge a 48ah LiFePO4 battery with a 36Watt solarpanel (see image)?

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ej-beekeeper asked Jun 23, '22

Advise load output MPPT 75/10. On which pins should I place the jumper if I want to charge a 48ah LiFePO4 battery with a 36Watt solarpanel (see image)?

MPPT Controllers

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Answer 1 · 2022-06-23T08:14:19Z

ej-beekeeper answered · Jun 23, 2022 at 08:14 AM

Ah, I found the answer. if I don't use the Load terminals the jumper can be removed.

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kevgermany ♦♦ commented · Jun 23, 2022 at 08:19 AM

You posted while I was typing. I'd still connect to load, not the battery.

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Answer 2 · 2022-06-23T08:17:49Z

kevgermany answered · Jun 23, 2022 at 08:17 AM

With lithium it's very important not to discharge too far. Usually the BMS will prevent excessive discharge.

Leaving the jumper off is for lead acid.

You haven't given us the battery specifications, but jumper between 1 and 2 gives a cut off voltage of 11.1V, while bridging 2 and 3 gives a cut off of 11.8V. Check the battery specs, if in doubt bridge 2 and 3.

I take it you're able to use Victron connect to configure for LiFePo4 batteries.

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