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andrew30


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Username andrew30
Member Since 2018-09-14 06:17:55
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Latest Forums Posts From andrew30

Date Post
2018-09-26
4:25:53 pm
FT-817ND - Charging NCR18650

[QUOTE="hertzian, post: 3001801"]So Andrew, (as an LFP user myself), ask yourself: What happens when my protection / balancing board fails? Are my s
2018-09-25
7:22:37 am
FT-817ND - Charging NCR18650

When left undecided, consider the following numbers:
LiFePO4:

Typical cycle life: 2000
Density: 90-110Wh/kg
Availability: scarce (in cell form)
Price
2018-09-25
7:07:23 am
FT-817ND - Charging NCR18650

[QUOTE="RFI-EMI-GUY, post: 3001327"]
If you construct a 4S2P do you use one protection board and pair up 2 cells in parallel for each of the 4 series
2018-09-24
6:59:13 pm
FT-817ND - Charging NCR18650

Even LiFePO4 cells don't achieve 7000 cycles. For QRP rig those parameters seems quite excessive (max. 2.2A), and a noticeable tradeoff for parameters
2018-09-24
4:49:45 pm
FT-817ND - Charging NCR18650

[QUOTE="prcguy, post: 3001035"]At one time I considered marketing a set of aluminum 817 replacement covers to save weight and also a bottom cover with

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