Energizer Ultimate Lithium AA Batteries, 24-Pack vs Spypoint Flex-S Solar Cellular Trail Camera (Integrated Solar)
Head-to-head spec comparison to help you pick the right trail camera for your needs.
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Spec-by-Spec Comparison
| Spec | Energizer Ultimate Lithium AA Batteries, 24-Pack | Spypoint Flex-S Solar Cellular Trail Camera (Integrated Solar) |
|---|---|---|
| Connectivity | N/A | cellular |
| Monthly fee | N/A | Free tier (100 photos); from $10/mo |
| Night flash | N/A | low-glow |
| Photo resolution | N/A | 36 MP |
| Trigger speed | N/A | 0.4 s |
| Detection range | N/A | 100 ft |
| Flash range | N/A | 90 ft |
| Power | 24x AA lithium (L91) | Solar + rechargeable |
| Weather rating | -40°F to 140°F | IP65 |
| Storage | N/A | microSD |
| Price | $43.02 | $168.08 |
| Rating | 9.1/10 | 8.7/10 |
| Buy on Amazon | Buy on Amazon |
Pros & Cons
Energizer Ultimate Lithium AA Batteries, 24-Pack
Pros
- The single biggest runtime upgrade for any AA trail cam — 2 to 3x alkaline life
- Rated -40°F to 140°F, so they don't die in a cold-snap when deer move most
- 15-year shelf life means you can stock up and store them
- Lighter than alkaline, which matters when you carry a dozen cameras' worth
- Steady voltage avoids the false low-battery warnings alkalines trigger in cold
Cons
- Pricey compared to alkaline up front
- Overkill for a low-traffic camera you check often
- A 24-pack only refills three 8-AA cameras
Spypoint Flex-S Solar Cellular Trail Camera (Integrated Solar)
Pros
- Integrated solar panel means you can hang it on a back-40 fence line and forget it for a season
- 36MP stills with 1080p sound video — a real step up over the Flex-M
- Same free 100-photo plan, so the solar premium doesn't add a forced subscription
- Dual-SIM auto-connect keeps it talking in spotty-coverage country
- Built-in rechargeable pack tops off from the sun all day
Cons
- Premium price — you're paying up front for the never-swap-batteries convenience
- Solar needs real sun exposure; deep-canopy north-facing trees will struggle
- Still low-glow, not fully covert at night
Our Verdicts
Energizer Ultimate Lithium AA Batteries, 24-Pack
If your cameras run on AAs, these are the upgrade that fixes the most complaints — dead cams in the cold and constant battery swaps. Buy them for any camera you can't check often.
Spypoint Flex-S Solar Cellular Trail Camera (Integrated Solar)
The set-and-forget cell cam for remote sites you hate driving to. The integrated solar plus free plan is the lowest-hassle long-haul combo here — just give it sky.
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