reapster
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reapster's Achievements
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reapster reacted to a post in a topic: Repair of Axpert Inverters : A Journey Started
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reapster started following Luxpower SNA Overcharging Batteryies (OVP Warnings) and Apexium EVE cells
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Energy-Jason reacted to a post in a topic: Battery box (and a terrible "UPS")
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Apologies if you've already done this, but worth asking: Did you set the DIP switches on the batteries? On the 1st battery, just switch 1 should be on, on the 2nd, only 2 should be on/up. I think they come with all down which likely wont work with RS485. The SVolt batteries do default to the Pylontech protocol as you've stated, as far as I'm aware.
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PsyCLown reacted to a post in a topic: SVolt 48V, 106Ah
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reapster reacted to a post in a topic: Battery box (and a terrible "UPS")
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Claimed/collected by @WannabeSolarSparky - was great to meet you!
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McGuywer reacted to a post in a topic: Battery box (and a terrible "UPS")
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reapster reacted to a post in a topic: Axpert repair
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Apologies for resurrecting an old thread - just dealt with an old Axpert 5kVA (Synerji rebrand of an Axpert MKS 5K) with a blown PAR board. When testing/fixing another similar (the 0.8 PF version) inverter, it ran fine without this board. In the case of the current unit, the board was blown badly, similar to that in the first post. Removing it seems to have no effect, and the inverter functions fine, charging and on battery. (This unit is a single unit, no parallel setup at all) I had assumed this was the "current-sharing" board, or something to do with handling parallel connections (mostly based on it being called the 'PAR' board in the service manual), but my understanding is nothing compared to @Coulomb's - Just wanted to update with some anecdotal experience! Keen to hear anyone elses thoughts and have my (admittedly limited) understanding corrected!
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spotity reacted to a post in a topic: 3 phase to single phase conversion
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Seems like such a thing called a rotary phase converter exists, which seems pretty interesting, and, possible to DIY (its pretty much 3-phase motor with some capacitors and drop-out relay) it seems.
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The Pace BMS typically keeps the last 400 or so events/alarms timestamped, I'd guess this is what they use to assist in their warranty-denying escapades. But wow, thats a pretty terrible customer experience.
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reapster reacted to a post in a topic: More Giveaways Loading...
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reapster reacted to a post in a topic: Averge 48100S Open heart surgery loading....
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Altergrid mentioned they expecting them around mid-August
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PsyCLown reacted to a post in a topic: SVOLT cells, good price per Ah
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Just got 16 of these too! As mentioned previously, all pretty much perfectly balanced (within 1-2mv) Just waiting on the clips + bus bars too now.
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That impressive @FixAMess, out of interest, at 1C discharge, what do you see the cell difference go up to? Keen to compare, I get the impression around 0.1v is expected at max discharge (for around a 100Ah/5kW battery), but I've seen higher on my batteries (though they aren't new). Assume it varies a bit over the discharge cycle as well, less during flat voltage section and higher during the lower and upper SoC?
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Agree with @FixAMess, though as a disclaimer, I haven't been through any warranty claims. Having read the "terms" though, things like having to register the installation within a week, take pictures, use the right fuses and settings (which as others have pointed out, is difficult when there are 4-5 different datasheets and manuals saying different things for a single battery), and only then, they might, at their discretion, honor a "warranty". It feels like many of these have enough escape hatches built in to avoid any claims if they deem fit, but honor claims soley to avoid bad publicity when it suits them.
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SteveCo1 reacted to a post in a topic: Charging inverters during peak could push up demand by one stage of loadshedding: Eskom
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TimCam reacted to a post in a topic: Charging inverters during peak could push up demand by one stage of loadshedding: Eskom
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Nicholas Strachan reacted to a post in a topic: Charging inverters during peak could push up demand by one stage of loadshedding: Eskom
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LLawrence reacted to a post in a topic: Charging inverters during peak could push up demand by one stage of loadshedding: Eskom
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Eskom are welcome to incentivise the behaviour change, and I'll gladly take advantage of that (which is exactly time of use tariff as mentioned above, though I know zero about whether this is available to us lowly individuals). Without that, I'll not be lifting a finger to help a failed SoE out of the goodness of my heart.
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Wow thanks for the doc. Looks pretty much like Voltronic LIB to me. I assume the greyed out parts are not mandatory (when sniffing LIB I didn't see my inverter request the the greyed out stuff (Axpert King 1) - and my battery (Blue Nova RacPower) also doesn't respond to most of the greyed out (0x10-0x2F, 0x40-0x55) addresses, annoyingly).
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reapster reacted to a post in a topic: SEGEN SOLAR SPONSORED PRODUCT GIVEAWAY
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Thanks @RikusW for all your work and for the info on this. I ended up with a BlueNova RacPower battery too, and your CAN bus dumps and decoding work are super super helpful. Also great to know it changes protocol instantly (saved me lots of restarts switching and dumping CAN messages again!) I can read out the usual stuff (Voltage, temp, SoC, charge/discharge current/voltages) from it via CAN (thanks to you) and via RS485 (Voltronic LIB protocol). I see they support some of the Voltronic LIB protocol, but I'm super keen to get the cycle count and cell voltages too, did BlueNova ever get back to you with info? Thanks again everyone!