Also posted on the 8088 Networks site. I was using this to create a small external power supply for my Yeasu VX-3R. I used a 9v battery initially and realized that I should use a voltage drop to improve the battery life. Without any sort of voltage drop, the battery was dead in a little over an hour due to the fact that a full 500mA was flowing into the radio.
| Battery Type | Capacity (mAh) |
Typical Drain (mA) |
| D | 12000 | 200 |
| C | 6000 | 100 |
| AA | 2000 | 50 |
| AAA | 1000 | 10 |
| N | 650 | 10 |
| 9 Volt | 500 | 15 |
| 6 Volt Lantern |
11000 | 300 |