New lithium tech

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Re: New lithium tech

Postby davef » Thu Oct 17, 2019 5:39 am

australsolarier,

I did miss the comment about internal regulator. I recall old threads about these 13V5 lead-acid equivalent packs only having internal BMS.

Cheers,
Dave
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Re: New lithium tech

Postby dRdoS7 » Thu Oct 17, 2019 7:16 am

Hi,

Recommended Solarking charge settings:

https://www.solarking.net.au/images/oth ... 0above.pdf

I have noticed that when they are recharged (via the caravan's chargers), that the BMV712 shows slighly less than 100% each time. I am assuming that's due to me using a slightly lower than recommended setting. It's only -3Ah, so not worth worrying about. I have also pulled out more than 200Ah once or twice (when testing - all chargers off). Both could be meter reading errors too (+/- 0.4 according to the specs).

I'll also add that I ran a 2200W kettle for 3 mins, drawing 199A at the start, which tapered off a little. I had expected the BMS to shut it down after 30secs.


dRdoS7

davef wrote:only having internal BMS


Some would call that "evolution". :lol:
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