It looks like a main difference is the thickness, the '32 being twice '16. It looks like the gadget I'm using might have room for TWO 2032s to replace the two 2016s, but the articles below seem to say that you would replace TWO 2016s with ONE 2032, but what EACH coin is 3V or are the two 2016s SIX V?
Really, what I'm getting at is whether the different 2016/2025/2032 would give BRIGHTER LIGHT, and would that be using ONE or TWO of the different coins?
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What is the Difference Between a CR2016 and a CR2032? | eHow.com http://www.ehow.com/facts_7612253_difference-between-cr2016-cr2032.html#ixzz1o6Dyp9TP
[font size=5]What is the Difference Between a CR2016 and a CR2032?[/font]
The CR2016 and CR2032 batteries are both small "coin" batteries used in electronic devices such as watches, digital cameras, PDAs and keyless entry remotes. They can sometimes be used interchangeably. Knowing the key differences between these batteries will help you determine whether one can replace the other in a given device.
Battery Size
The CR2016 is 1.6mm thick and the CR2032 is 3.2mm thick. This difference in thickness may cause problems when trying to fit one battery into a device designed to take the other model. They are both 20mm in diameter.
Battery Power Output
The CR2016 provides 90 milliampere-hours, whereas the CR2032 provides about 220 mAh. Under the same usage settings, the CR2032 should provide power longer than the CR2016. Both are 3-volt batteries.
Battery Life
Under comparable circumstances, the CR2032 is designed to hold its charge longer than the CR2016, if they are rechargeable batteries. Most CR batteries are not rechargeable.
Battery Weight
The CR2016 weighs about 1.6 grams, and the CR2032 generally weighs 3 grams, which again can cause an issue with substitution, depending on the device in which you intend to use the battery.
http://wiki.answers.com/Q/Can_you_replace_a_CR2016_battery_with_a_CR2032
[font size=5]Can you replace a CR2016 battery with a CR2032?[/font]
Answer:
Both batteries are the same diameter and the same voltage. The CR2032 is twice as thick as the CR2016 and has a larger ah capacity. If the extra thickness is not a problem, the CR2032 will be a good replacement for the CR2016. Some mounting methods are thickness specific and others are not!
http://arstechnica.com/civis/viewtopic.php?f=23&t=67148
[font size=5] Battery Question - Can I use a 2016 or 2025 to replace a 2032?[/font]
You would need to stack two CR2016s to equal a CR2032. It's usually not optimal but I don;t know if a garage remote is sensitive enough to have a problem with it.
I replaced the two CR2016s in my Jeep remote with one CR2032 and it didn't last very long and acted flakey.
You can use a 2025 or 2016 to power it, you'd either need to bend a pin, or use a spacer.
You can't stack them. Stacking 2 CR2016s would get you 6V, and you would probably fry what you're using.
When you replaced two CR2016s with the 1 CR2032, you did not give enough voltage to the remote for it to work properly.
Hm, it looks like the thickness is the problem as the diameter of all three batteries is the same. The 2016 is definitely too thin to work, but the 2025 is pretty darn close to the 2032.
For a short-term hack, you could probably use some folded up aluminum foil to pad the battery (pressed against the + side only, so that it doesn't short the terminals). The difference in thickness between a 2032 and a 2025 appears to be 0.7mm, with a tenth of a milimeter or so of slack provided by the spring.
You don't want to do that for more than a couple of days, though.
I have replaced a 2032 with two 2016s and vice versa several times without problems.
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