>A Peukert exponent of 1.00 means that there is no Peukerts effect at all and that the battery will deliver the same amount of energy at any discharge rate. I would guess that the Peukert's exponent for Nickel Iron batteries is higher than 1.00
>Eric
No doubt. References online claim virtually no Peukert effect for any of the Nickel chemistries including NiCd, NiZn, NiMH.
I’m sure he just was parroting these. Worse, the weblink he offered drawing folks to his personal Peukert calculator page does not provide any support for the 1.0 Peukert exponent claim.
From the brief looking I’ve done, I’d guess that the effective Peukert exponent for NiFe is below 1.05, and once you’re down that low, unless you’re drawing high-C loads, I don’t think you have to worry much about it.
I think the major beefs against NiFe batteries are:
· Cost
· Relatively high self-discharge rates
And those weigh enough against them that we don’t appreciate the uber-long life of them. Charge/discharge inefficiency isn’t much of an issue for many of us, but high initial cost and self-discharge rates are.
-Myles Twete
No comments:
Post a Comment