Richmond times-dispatch. [volume] (Richmond, Va.) 1914-current, 1917-04-08
S|MPL|F|ED LESSONS ON
PROPER CARE OF AUTOS
opacity Of Storage Battery Is Fix.
planned by Timcs-Disliatch
Auto Expert.
now ro TEST THE BATTERY
hhici"'cy Of Battery Is Procured by
ruling u With Distilled Water.
Never Put Acid in Battery. An
>"crs to Queries.
LESSON NJ. ~.
III" storage Batter! uContinucdi.
The Capacity.

'"p>riSlt. 1917. by Fred G. C;ucrriicb.l
IA" '"paciiN., or ici us SAY, tho
'W"UH' Of current which can lie stor-
%" ~ iu storage battery is given in
'N'r"r@- hours. Thus. there are 80. 90.
81" loo, etc, >uperc-hour batteries.
Tho "iuher Of ampcrcs nowing, null
,'hn'd By the number OF hours II flows,
"clhS the amperc hours SO CO.
"npcie-hnur battery can FIELD one
|mp"rc for sixty hours, or TWO am
heres for thirty hours, or ten am
hercs for six hours or 10 ampcrcs for
"n"-half hour, ctc.
Also to bring completely discharg-
go '"-iinpcr.- hour battery 20. fun
charge, when charged by a 5-anpc:c
current the battery mus, he connect
~ TO this charging current for twelve
hohrs As ~ is customary to give
battery q 10 per cent ovcrCharrc, il
would, IN fact have to b" conncc.ed
i"nE enough 10 give G.-a!nperc hor rs,
~ thirteen and ono-siX,h hours.
Understanding tho above viii help
.op 70 tell what TN" condition of tho
hati"iE OF your car u. As. Tor exam
pc starting motor viii require any
where from 10 TO 30 aunpcres in or
"or 20 crank the engine Assuming
mat II requires a lS0-aml,cre current.
'h"n fully charged GG-amperc-hour
battery would be discha cd complete
" In one-third Of AN hour. or twenty
minutes. Now. The charging generator
charges AZ about six ainpere rate. so
mat IT would take ten hours 10 charge
ibis battery. Thus you soc i, takes
about thirty minutes OF running 20
send back tho same amount of current
10 q battery as is taken out or used UP
"a one minute Of use OF the self
s'artrr. AZ night the lights will take
All Of tho current made by the genera
to- and so there vii! tie no charg-
INK battery will also discharge very
slowly when idle.
From tho above, YOU can see that
vHcrc tho starter is much used and
Tho car driven for shor, .uns only
~" battery will become discharged
al! have 10 lie rcchargcd at an out
'ldr source: as, al charging station.
II your battery has 4 tendency 10 be
come discharged, reasoning from the
above Will tell YOU il tho discharging
!, natural or II something is wrong.
Testing the Untt~ry.
Suiphuric acid is much heavier than
water. and 50 a solution OF sui
rhurio acid and water cas- the cleo
'roly,c>. viii he heavier than water.
and the greater the proportion Of acid
20 water tho heavier viii he the So
tY,'c'.
" n the clcctrolytH is frs, poured
INTO tho battery. much OF the nulphuric
acid VIII bo absorbed by tho piatcs
and so tho clcctrolytc becomes lighter
10 weight. tho proportion @, acid u
water becoming less. As tho battery
b.. charged however. the sulDhurc acid
IS ,hro"n out Of the plates and into
'h, cicctrolytc again. thus mailing the
"icCtTn!Nt" heavier. A. the battery is
discharged tho acid VIII again be alb
'prh"d and the clectroiytc become
lighter
Here, then Is = way IN which TO
30" row we'll charged the battery IS,
namely. hy weighing tn" elcctrolytc.
The best wav 10 weigh the electro