an, and polished, will drive the radio recharging
business to some other service station.

VESTA RADIO BATTERIES

The Vesta Battery Corporation manufacturers three special types of "A"
batteries for radio work, as follows:

1. The 6EA battery, made in capacities of 60, 80, and 100 ampere
hours. Fig. 160.

2. The V6EA7 battery, having a capacity of 80 ampere hours. Fig. 161.

3. The R6EA battery, having a capacity of 100 ampere hours. Fig. 162.

[Fig. 160, 161, 162, 163 Various Vesta Radio batteries]

Vesta Radio Batteries. Fig. 160 shows the 6EA Series, "A" Battery.
Fig. 161 shows the V6EA Series, "A" Battery. Fig. 162 shows the R6EA
(Rubber Case) Series, "A" Battery. Fig. 163 shows the "B" Battery.

These batteries have 5, 7, 9 plates per cell, respectively. The plates
are each 5 inches high, 5 7/8 inches wide, and 5/32 inches thick. The
cases for these batteries are furnished in three designs--plain black
boxes (all sizes), finished maple boxes (7 plate size only), and hard
rubber boxes (9 plate size only). These Vesta batteries are the "A"
batteries used for heating the filaments of the audion bulbs. The
Vesta Radio "B" battery, Fig. 163, is a 12 cell, 24 volt battery, with
a 22 and a 20 volt tap.

EXIDE RADIO BATTERIES

[Fig. 164 Exide Radio "A" battery]

The Exide Radio "A" battery, Fig. 164, is made in four sizes, the
capacities ranging from 20 to 120 ampere-hours. The design and
construction of these batteries are similar to the Exide starting
batteries. The over-all height of these batteries is approximately
95/8 inches, the width 7-5/16 inches, while the length varies with the
number of the plates.

Type Cat. No. Length Weight Capacity
-------- -------- ------ ------ --------
3-LXL-3 13735 4-9/16 15-1/2 lbs. 20 amp. hrs.
3-LXL-5 13736 5-11/16 24-1/2 lbs. 40 amp. hrs.
3-LXL-9 13737 9-1/16 42-1/2 lbs. 80 amp. hrs.
3-LXL-13 13750 12-7/16 59-1/2 lbs. 120 amp. hrs.

WILLARD RADIO BATTERIES

The Willard Storage Battery Co. manufactures both "A" and "B" storage
batteries. The Willard "A" battery, Fig. 165, is an all-rubber
battery. The case is a rubber "Monobloc" construction, that is, the
entire case is pressed into shape at one time. There are no separate
jars for the cells, there being rubber partitions which form integral
parts of the case. The case is, therefore, r