Re: Powering the BitX40 for portable use: votlages and battery chemistry
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It is my understanding that rechargeable Li-ion , LiFePO4 cells having an nominal voltage of 3.7 V should NOT be discharged below 3.0V
Commercial charging modules charge the cells up to 4.2 V Frank , GM0CSZ
On Thu, Jan 5, 2017 at 11:45 PM, ahecker@... [BITX20] <BITX20@...> wrote:
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If one plans to run from LiFe2O4, there's no need to do anything different than when one runs lead acid.
Minimum cell voltage is 2.1VDC, Ultimate max is about 4.1V, but for long life most folks don't charge past 3.7V.? Lead will run between 10V and a max charge in the 14.2V range.? LiFePO4's long-life bounds for a 4 cell battery would be 8.4V low and (at 3.7V) 14.8V fully charged.? As they have a wider operating range than lead, treating them exactly like lead charge/discharge wise gives them a very easy life.
They're widely available and pretty inexpensive from radio control suppliers - plug and play. | | | | | | Lithium Iron Phosphate (LiFePO4) is kind of Li-Ion battery for high power applications. Featuring high discharging current, long cycle life & low energy de... | | | | Preview by Yahoo | | | ? This is a simple but very effective analog battery management system and charge controller (yeah, I was the 'hecker' part of that project). | | | | | | fechter wrote:I don't know how I managed to do this, but there is a trace that's improperly routed. Luckily, it won't be too hard to correct. U2 pin 6 ... | | | | Preview by Yahoo | | | ?
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