| Type | Initial Rate | Recharge Rate |
|---|---|---|
| 56LAR | 1.0 | 2 |
| 56RAR | 2.0 | 3 |
| 76RAR | 3.0 | 4.5 |
| 96RAR | 4.0 | 6 |
| 116RAR | 5.6 | 7.5 |
| 136RAR | 6.0 | 9 |
The final gravity of the electrolyte should be 1.250. However, if the owner insists on getting maximum capacity, the battery may be filled with 1.250 electrolyte and balanced to 1.290 at the end of the charge.
The Philadelphia Radio "B" battery, type 224-RB, Fig. 172, has 12 cells contained in a one-piece rubber case. It is shipped dry, and requires no initial charge. To prepare it for service, the soft rubber vent caps are removed and 25 c. c. of 1.250 electrolyte poured into each cell.
U. S. L. RADIO BATTERY
The U. S. L. Radio "A" battery, Fig. 173, uses 1/4 inch positives, with 3/16 inch intermediate and 1/8 inch outside negatives. Port Orford cedar separators are used which are four times as thick as the usual starting battery separator. The case is made of hardwood, and is varnished to match cabinet work. The electrolyte has a specific gravity of 1.220. The heavy plates and separators and the low gravity of the electrolyte are designed to give long life.
| Type | Plates per Cell | Ampere Hour Capacity @ 3 Amperes | Ampere Hour Capacity @ 1 Amperes (or intermittent use) | Dimensions | Weight |
|---|---|---|---|---|---|
| DXA-303-X | 3 | 12 | 20 | 5-3/16 x 7-1/4 x 9-1/4 | 18 |
| DXA-305-X | 5 | 40 | 60 | 9-1/8 x 7-1/4 x 9-1/4 | 39 |
| DXA-307-X | 7 | 70 | 85 | 11-3/4 x 7-7/16 x 9-1/4 | 48 |
| DXA-309-X | 9 | 98 | 115 | 14-3/8 x 7-7/16 x 9-1/4 | 59 |
PREST-O-LITE RADIO BATTERIES
The Prest-O-Lite Co. makes two lines of Radio "A" Batteries. First, an inexpensive battery, Fig. 174, and a deluxe battery, Fig. 175, which has a better finish and appearance. Both types have a mahogany finished case with rubber feet to prevent damaging furniture. A bail handle simplifies the carrying of the battery. Capacities range from 47 ampere-hours to 127 ampere-hours at a one ampere discharge rate.