357/LR44 battery question

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kimi
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Joined: 11 Aug 2016, 14:56

357/LR44 battery question

#1 Post by kimi » 09 Mar 2022, 22:30

Can someone tell me how the silver oxide 357 size button cell batteries compare to LR44 button cell alkalines in terms of run time? (For instance, in a Pelican L1). Is there a difference between silver oxide and alkaline in terms of run-time? When I swapped out the LR44s in my L1 for the 357s, I saw a noticeable improvement in brightness...but at $2.00 a pop for the 357s versus 50 cents for the LR44s, an increase in run-time would be nice, too! Any assistance would be really helpful...
Last edited by kimi on 04 May 2022, 16:10, edited 2 times in total.

mike_s
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Joined: 08 Feb 2012, 13:10

Re: 357/LR44 battery question

#2 Post by mike_s » 12 Mar 2022, 13:40

The 357 cell chemistry is 'silver' based; rated 1.55 V (nominal)195 mAh vs the LR44 alkaline chemistry, rated 1.5 V (nominal) 110 mAh.

The silver (Zn/Ag O) has a very flat discharge rate vs a sloping rate of alkaline.
mike

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EmoryLau666
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Re: 357/LR44 battery question

#3 Post by EmoryLau666 » 20 Mar 2024, 19:15

In comparing the silver oxide 357 button cell batteries to LR44 alkaline button cell batteries in terms of run time, there are a few key differences to consider:

1. **Voltage**:
- Silver oxide batteries typically have a more stable voltage output over the lifespan of the battery compared to alkaline batteries. This means that devices powered by silver oxide batteries may maintain their brightness or performance levels for longer periods.

2. **Capacity**:
- Silver oxide batteries generally have a higher energy density and capacity compared to alkaline batteries. This higher capacity may result in longer run times for devices using silver oxide batteries.

3. **Cost**:
- As you mentioned, silver oxide batteries like the 357 tend to be more expensive than LR44 alkaline batteries. While silver oxide batteries may offer improved performance and longer run times, the higher cost may be a consideration for some users.

Based on your experience with the Pelican L1 flashlight, where you noticed a noticeable improvement in brightness when using the 357 batteries compared to LR44 batteries, it is likely that the silver oxide 357 batteries are providing a more consistent and higher voltage output, resulting in better performance.

If you are seeking longer run times in addition to improved brightness, using silver oxide 357 batteries may be a good choice. While the upfront cost may be higher, the potential for extended run times and performance may justify the investment, especially if you rely on the flashlight regularly and require consistent brightness.

Ultimately, the decision to use silver oxide 357 batteries over LR44 alkaline batteries will depend on your specific needs and preferences in terms of performance, cost, and convenience.

More articles Related BATTERIES topic: lr44 vs 357, A23, AG10, h6 vs h7 vs h8 vs h9
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