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24/1/2021 at 5:13pm
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Joined: 29/6/2008 Diamond Member
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Thanks for the heads up trog 100, you mentioned that a charger came with the Ultra Max battery, is that the 10 amp charger that you use, if so what Volts is it putting out.
I would agree that a 10amp charger is more than adequate for most folks needs, like you say even with a lithium battery it’s good not to run it down to such a low capacity only for the BMS to kick in and disconnect until a charge can go back in,
My usage would be for my portable battery box, which if using a 100Ah lithium battery would be down to around 50% after a weeks use, then just stick it on charge over the weekend ready for the next working week, my 120Ah SFLA seems to be coping with that way of working quite well, the battery box c/w 600 watt PSW inverter weighs 26.4kg so getting that down to say 15kg is my main aim, but I can wait until my current battery starts to fail or if there is a significant drop in price of lithium batteries in the next year or so,
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24/1/2021 at 9:32pm
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Yep trog100, the £90 FSLA battery that I bought last year will be the last LA battery that I ever buy, at 60 any LiFeP04 that I buy should see me out, but to be fair even though the cells may last that long, I doubt that the BMS will, any capacitors in the circuit will have dried out and failed within ten years I would guess.
As for price of LiFeP04, I think prices are set to tumble in the next couple of years, and by 2023, I can see 100Ah costing around £250, but without a crystal ball who knows.
Thanks for the info, at 14.6v for your charger that is bang on, 10amps is fine for an overnight charge.
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25/1/2021 at 12:45pm
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Yep Trog100, funny you should mention computers, I have just taken delivery of a DEL Optiplex 790 system c/w DELL 22” monitor, it’s a tower unit with 1TB HD and i5 processor, keyboard and mouse included, the Tower and Monitor are refurbished but look as if new, all for £209 delivered I added my own ASDA £7 USB speakers.
OK it’s not a gamers system, so went for the embedded graphics, but it suits my needs, first computer that I have ever bought, my Son 35 gave it the once over and helped (did) set it up, he has said he is going to get one from the same seller for the money he says I have done OK for what I need.
Decent Graphic card’s are going for daft money, mostly due to all those nuts mining for Bitcoin.
COVID-19 is just a blip, and a feast for the media, things will soon be back to normal and production will soon ramp up again, I am certainly in no rush to splurge £500 on a 100Ah LiFeP04 leisure battery, so will be holding out for when they are £250 if my £90 120Ah SFLA battery can last that long.
But it’s good that we have early adopters like yourself, who are willing to pay top dollar, and pave the way for the rest of us, I had a mate who was the same, I remember him paying £1000 for his first Garmin Satnav.
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