Comf manufactures and supplies Battery Holders & Contacts for a wide range of batteries. The breadth of battery types and applications for their use is growing all the time, which Comf responds to client needs with an ever growing range of holders, contacts, wire harness and connectors.
The following pages are provided to help clients, and novices understand the more common battery types and size, as well as provide a summary shortcut to the Comf range that compliments their use.
We trust that you find it useful.
Battery Sizes and Their Uses
| Battery Size | Voltage | Typical Capacity | Dimensions (approx.) | Common Examples of Use |
|---|---|---|---|---|
| AAAA | 1.5V (alkaline) | ~600 mAh | Ø8.3 × 42.5 mm | Hearing aids, pen lights, small styluses, digital thermometers, some medical devices |
| 1/2AA | 1.5V (alkaline) | ~1,200 mAh | Ø14.5 × 25 mm | Emergency lighting, camera flash units, specialized portable devices |
| 2/3AA | 1.5V (alkaline) | ~1,800 mAh | Ø14.5 × 35 mm | Emergency lighting, certain camera equipment, specialized industrial sensors |
| AAA | 1.5V (alkaline) | ~1,000 mAh | Ø10.5 × 44.5 mm | Remote controls, small flashlights, digital thermometers, wireless mice, hearing aid batteries |
| AA | 1.5V (alkaline) | ~2,000–3,000 mAh | Ø14.5 × 50.5 mm | Flashlights, wall clocks, portable speakers, game controllers, toys, wireless keyboards |
| C | 1.5V (alkaline) | ~8,000 mAh | Ø26.2 × 50 mm | Large flashlights, megaphones, lanterns, some power tools, emergency equipment |
| D | 1.5V (alkaline) | ~12,000–20,000 mAh | Ø34.2 × 61.5 mm | Heavy-duty flashlights, large lanterns, emergency lights, industrial equipment |
| 9V | ~400–600 mAh | 17.5 × 26.5 × 48 mm | Smoke detectors, guitar effects pedals, multimeters, audio equipment, testing devices | |
| CR1616 (coin cell) | 3V | ~55 mAh | Ø16 X 1.6mm | Small calculators, watches, some medical alert buttons |
| CR1620 (coin cell) | 3V | ~80 mAh | Ø16 X 2.0mm | Watches, small calculators, car key fobs |
| CR2016 (coin cell) | 3V | ~90 mAh | Ø20 X 1.6mm | Watches, hearing aid buttons, small electronics, automotive remotes |
| CR2025 (coin cell) | 3V | ~165 mAh | Ø20 X 2.5mm | Watches, calculators, key fobs, medical devices, small LED lights |
| CR2032 (coin cell) | 3V | ~200–220 mAh | Ø20 X 3.2mm | Watches, calculators, hearing aids, car key fobs, motherboards, small electronic devices |
| CR2430 (coin cell) | 3V | ~270 mAh | Ø24 X 3.0mm | Larger watches, fitness trackers, some medical devices, specialized electronics |
| CR2450 (coin cell) | 3V | ~600 mAh | Ø24 X 5.0mm | High-drain coin cell devices, some fitness trackers, larger watches |
| CR2477 (coin cell) | 3V | ~1,000 mAh | Ø24.5 X 7.7mm | High-capacity applications, some specialized medical devices, larger portable electronics |
| CR3032 (coin cell) | 3V | ~500 mAh | Ø30 X 3.2mm | Backup power for devices, some medical equipment, specialized industrial applications |
| LR44/SR44 (coin cell) | 1.5V (alkaline) 1.55V (silver oxide) |
~150–180 mAh | Ø11.6mm | Calculators, watches, hearing aids, laser pointers, toys |
| LR1130/SR1130 (coin cell) | 1.5V (alkaline) 1.55V (silver oxide) |
~55 mAh | Ø11.6mm | Very small watches, hearing aid batteries, medical devices |
| LR54/SR54 (coin cell) | 1.5V (alkaline) 1.55V (silver oxide) |
~60 mAh | Ø11.6mm | Calculators, hearing aids, medical alert devices, small electronics |
| 18650 (lithium-ion) | 3.7V | ~2,600–3,500 mAh | Ø18.6 × 65mm | Laptop chargers, flashlights, vaping devices, power tools, e-cigarettes, portable power banks |
| PP3/6LR61 (rectangular) | 9V | ~565 mAh | 17.5 × 26.5 × 48 mm | Smoke detectors, multimeters, guitar tuners, PA systems, testing equipment |