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    Problem with Victron 12v 30A DC-DC on a Peugeot Boxer with smart alternator

    Hoping someone can help here, perhaps having had the same issue with the same or similar vehicle. We installed a Victron 12v 30A DC-DC non-isolated charger into a motorhome built on a 2022 Peugeot Boxer with smart alternator. We’ve installed many DC-DC chargers, quite a few on vehicles with...
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    Connect two JK BMS to Can Bus so inverter can control both

    Hi folks A request for info from someone, and I’m unsure of the answer as I’ve never tried it. He wants to control two batteries with JK BMS using the same Can Bus. He wants the inverter to control various things. I would have suggested a Multiplus but he wants to go a different route. Anyone...
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    Juntek 200A smart shunt counts negative amp-hours after reaching 100%SOC

    I have both the Victron Smartshunt as well as several Juntek smart shunts. The Victron is some cool kit, very accurate and works well. At a fraction of the price, the Junteks were great too. No Bluetooth app but you could mount the wireless display anywhere in your van where it would make most...
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    Clawing back money for miss-sold "420ah" cells

    Covered in another thread, we recently took delivery of and tested capacity for cells sold as 420ah. The cells in question tested out at 242-244ah, so basically less than 60% of stated capacity. This is the thread: 420ah Cells We're now beginning the process of obtaining a refund. We're trying...
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    I'm surprised that Victron DC-DC chargers don't look after starter battery

    We've just installed a Victron DC-DC 30a charger into my daughters van. I'm surprised that it doesn't look after the starter battery, my motorhome has a Votronic DC-DC and previously had a Sterling B2B (both of which keep the starter battery topped up). What do Victron owners do to keep their...
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    This seems way too good to be true ... 420ah from a "normal size" LifePO4 cell

    Has anyone actually tried these guys? https://www.aliexpress.com/item/1005002529653237.html I'd be tempted just to see how close to capacity they are. 420ah in my rig would be .... nice But TBH they are very new and their store name looks a bit like the ID supplied by AliExpress. Also can't...
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    Review of Capacity and Terminal Temperature - cells from Shenzhen Luyuan (Amy Wan)

    Hi folks I thought I'd share the results of our first two tests of cells purchased from Shenzhen Luyuan (Amy Wan). We wanted to know three things: What are the individual cell capacities and how evenly matched are they. What is the capacity for a a reasonably high-C - in our case this would...
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    Capacity test - low current vs high current

    Hi folks For those that have actually run both a low current and a high current test of the same cells, how different were the results? So far I've found that good quality cells will give me similar AH, testing for example 14a (0.05C) vs 160a (0.6C). In my case the low current test was done on...
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    Chassis corrosion caused by common negative

    Has anyone actually experienced corrosion caused by a common negative (neutral) using the chassis? I know the theory that a DC-DC (B2B) charger based on common negative using the chassis instead running negative cables could cause some corrosion. Of course, this could only occur under very high...
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    Supplier defends lower capacity as being within 5% of stated capacity

    Hi folks I'm curious if this is quite common. We decided, partly out of curiosity, to check out a few Alibaba sellers of cells. We've received a set of 4x300ah cells a few weeks ago which have tested out at 285ah (four tests including high current at around 0.5C and low current at around 0.04C...
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    Daly BMS bluetooth IOS app

    Am I right in saying that the Daly BMS has a bluetooth option and a droid app, but no support for IOS? If so, does anyone know if they have plans to release an IOS app at any stage?
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