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peterboat

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Everything posted by peterboat

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  4. The aluminum ducting is fairly cheap as well fingers crossed it works for you as well as it does for me
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  6. I have mounted mine on the redundant skin tank, I have a breather near it but that is of no concern, mine is a 3" version a blows a gale so if you mounted yours low it would blow coldish air onto the alternator, i makes a big difference to my electric motor over the internal fan 30 degrees C or more cooler which is good for motor life
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  9. So I have come back to the boat this morning Nasa says 13.6 volts and no amps going in turned on inverter and a couple of amps show, my fridge/freezer and toilet fan always run so clearly it finished charging this morning then shut down until the batteries are low enough to trigger bulk? They did because I put the electric kettle on for tea ?
  10. Bob I have a bilge blower which feeds air into my electric motor very cheap and it keeps the temp down far better than the internal fan did, I am sure you could rig something similar up? They dont draw huge amps
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  12. Like you I expect my batteries to do way more than 5000 cycles, but even then I think they will last my lifetime, I am putting a heating pipe through my drive battery boxes which are insulated as well so that if I want to cruise in the cold they will still charge from the solar
  13. The 5000 cycles down to 80% capacity is what valence claim for the batteries, I have bought 30 x 36 volt valence batteries out of a bus, these were at end of life, they were in various states of charge some were at zero I have charged them all up to 41.7 volts and reset the BMSs they are holding 40 volts ish and have sat for a month holding that charge. They accepted the rated KWhs so only time will tell how good they are on light use driving the boat.
  14. Mike like the others I have a very low float figure, mine hit 13.9 in bulk go to 13.8 in absorb and then 13.4 float but nothing goes in, my NASA shows no charge, the absorb setting alternates between a couple of amps and zero as well for about an hour
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  19. That's good they are very good batteries possibly the best available as they were designed for the American military
  20. I have a NASA but only look at the voltage amps in and out is of no concern to me. My only issue was the 13.8 volts for to long but I am sure it will be reduced rapidly
  21. When you plug them in they tell you how many cycles they have done, These batteries were used in smiths electric vans, and the USA used them in mini subs so they are good. Cycle wise 5000 would be about right at the lower voltage figures. if like me you are off grid these will be a revelation to you like they were to me, I would just connect them up to your LAs if you charge by alternator and monitor the voltages, use the lower settings for the charger and solar. The price he is offering them at is cheap so buy before they are gone!
  22. If flashing green all is good, the leads connect to other batteries so that they talk to each other a9a master BMS, I can talk to the batteries with a lead and my old puter. If you buy them you would just charge them to 13.8 volts, that is 80% full and is the ideal top volts for these batteries. In all honesty I have given up checking mine as they are always balanced, John who has them has never checked his at all! The mantra is 20 80%= long and happy life for LifePo4s
  23. Richard ask the seller whether its flashing green or red, these batteries are what I have in my domestic bank and Mega van. Now your solar has to be set at 13,8 volts and float at 13,6 volts, these batteries have an internal BMS but nobody really knows whether it works on its own or it needs the master to control them, these are tough batteries and are 2.5k new, I have the lead and software to read them
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  25. My batteries are ex bus and van batteries my electric motor is from a forklift and the controller ans throttle are small car ones from curtis, if i had bought them to fit straight into a new widebeam they would have cost 3.5k which is cheaper than a diesel engine, so the price of the stuff is relatively cheap. The reality is the people on here re-purposing electric vehicle kit are only like narrowboaters of yesteryear? at first it was a few that came to the cut and then it was in the hundreds, until we became thousands! If you look in canal magazines of 50 years ago boating was very much DIY, so that is what we are doing going back to our roots
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