question

davidrossi avatar image
davidrossi asked

BatteryProtect BP-100 with van alternator IN and Relion RB100 100Ah lithium battery OUT?

My builder used the BatteryProtect BP-100 with IN connected to my 2020 Transit 250 dual battery/alternator Customer Connection Point, and OUT connected to my house battery, the Relion RB100 100Ah lithium battery. I am having some odd reverse-flow issues at times.

I read the following in the BP-100 manual:

" Caution: uncontrolled reverse current will flow through a Battery Protect if Vout > Vin. Therefore never use a Battery Protect for battery to battery charging."


Are we doing this wrong?


Thanks

Lithium BatteryBattery Protectalternator
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1 Answer
pau1phi11ips avatar image
pau1phi11ips answered ·

In a word, yes. It is wired wrong. They should've used a DC-DC charger instead of the BP.

Also, this it the modifications space. This should've been asked in Q&A: https://community.victronenergy.com/spaces/8/index.html

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Related Resources

Victron BatteryProtect product page

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