Of course we all know that the flesh can be weak. Same with theory and speculation without
extensive testing and verified reports. That's why many people were so disappointed when the
Legendary Sandia
'PV HYBRID BATTERY TESTS ON L-16 BATTERIES'
AKA 'Lost Bigtime Battery Studies'
https://www.google.com/#hl=en&sugexp=les%3B&gs_nf=1&tok=e6xYuMDiEbaYPpXb9WVYlg&cp=28&gs_id=4&xhr=t&q=Lost+Bigtime+Battery+Studies&pf=p&output=search&sclient=psy-ab&oq=Lost+Bigtime+Battery+Studies&gs_l=&pbx=1&bav=on.2,or.r_gc.r_pw.r_cp.r_qf.&fp=df7f322f36a8afd9&biw=1011&bih=526http://search.yahoo.com/search;_ylt=AiM9GDGP2I2aGAtU9lq9RCqbvZx4?p=Lost+Bigtime+Battery+Studies&toggle=1&cop=mss&ei=UTF-8&fr=yfp-t-701(that outfits like the Legendary Morningstar Corporation thought so highly of)
just evaporated off the face of the earth for well over a Decade.
Then 'The Boys' got a little taste of it for a few weeks and it completely disappears again.
Now that report was exactly up the alley of what is getting thrown around in this thread.
Sandia has tried a lot of things and they have had to shut down experiments in mid-stream
so they would not ruin good batteries with foolishness.
Where I'm heading is EXACTLY 'In Tune' with their findings. Not 'going off' in new frontiers.
Just NEW thinking to achieve the preferred results ('hot set-up') without much (if any) fuel.
I have to ask who made copies of this Landmark 8 page Study for 'the boys'.
Who was thinking ahead and showed a little humility.
<snip>
Summary
While the L-16 is a very good candidate for
use in PV systems, results of the PV Hybrid
Test Procedure indicate several ways that the
L-16's performance can be enhanced. The
first set of test results were obtained with 12
volt batteries (that is, two L-16's in series).
The purpose of this test procedure was to
characterize charging profiles in a generic PV
hybrid cycle.
Results show that the L-16
battery can quickly lose as much as 48% of its
initial available capacity if the regulation
voltage is too low, the time at regulation
voltage is too short, and the time between the
finish-charges is too long.
The data in this
report suggest the following:
(1) L-16 regulation voltage in PV hybrids
should be well above 2.40 vpc (14.40
volts) and may need to be as high as
2.55 vpc or higher (15.3 volts for a 12
volt battery) depending on how the
battery is charged.
(2) L-16 finish-charge time in PV hybrids
should be at least 3 hours and may need
to be longer depending on the time
between finish-charges.
(3) The maximum interval between L-16
finish-charges should be about one
week.
(4) Results vary significantly for different
manufacturers.
The 12-volt testing was followed by 48-volt
battery string tests that demonstrate how weak
or low capacity cells will function within the
24-cell string.
Further, results show the need
for proper charge control and regular
inspections. This test identified a low capacity
cell that was forced into reversal on discharge.
A cell in reversal will eventually be damaged
and require replacement. Additionally, the 48-
volt battery string test provides information on
how specific gravity measurements, monoblock
(a monoblock is the smallest packaged battery
size – three cells or six volts in the case of an
L-16 battery) voltages, can be used to track
battery health. Implementation of these
procedures can help ensure that the L-16 will
achieve its maximum cycle-life and thus
minimum life-cycle cost.
INTRODUCTION
<end of snip>
Bill Blake