Hello community

I know this topic has nothing to do with Swisscom. But experience has shown that many in this community know about electricity etc.

Where can I find out whether a garden tool that previously ran on a battery of 2.0 amps can also withstand a replacement battery of 2.5 amps?

Unfortunately, I can’t figure it out from the wiki with all the formulas.

Summer thanks in advance.

cabonesha

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@Cabonesha What is also important is whether the charger can also deliver 2.5A.

If this is not the case, the charger for the battery may become defective or the battery may never be fully charged.

2. If you use a different battery than the original one, you should pay attention to the following:

1. Voltage (U) Volt (unit of measurement) must be the same

2. Ampere hours ([Ah](https://de.wikipedia.org/wiki/Ampere hour)) Power (P) Mass unit (Watt) must be as equal as possible

3. Battery chemistry (lead, NiMH, LiPo, LFP, etc…) must be the same because of the charging characteristics of the charger.

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@user109 wrote:

@Cabonesha What is also important is whether the charger can also deliver 2.5A.

If this is not the case, the charger for the battery may become defective or the battery may never be fully charged.


That’s not generally true.

A battery, no matter how many Ah it has, can also be charged with a weaker charger; charging takes 1x longer…

Example:

2Ah battery is charged with 500mA charger, takes around 4h.

The same charger needs 5 hours to charge a 2.5Ah battery. Zero problem.

Another example:

My solar charge controller delivers a maximum of 10A with full irradiation. If I have a 100Ah battery on it, charging takes ideally 10 hours. If the sun only shines a little and the charge controller only delivers 4A, charging takes longer. Likewise if I connect a larger battery.

A properly designed charger only delivers as much current as it can. This means it can’t break.

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….keep on rockin' 🤘🏼🤘🏼🤘🏼

@user109

Thank you very much for the clarifications, for the support.
The replacement battery comes with a charger, so that should be compatible.

Voltage/volts of the old and new batteries are identical

Ah old 2, new 2.5

P respectively. W. no idea ☹️

Chemistry, hmmm, I assume it’s the same since both batteries are from the same manufacturer

I’ll take a closer look at the batteries when I get the chance.

The goal is to ensure that the device powered by battery energy is not damaged.

LG cabonesha

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@POGO 1104

Thankfully, the question is unnecessary because a charger is included with the replacement battery.

I’ll have to read through the two examples during the day. At this time of night I’m not receptive enough, especially since everything with electricity (e.g. 500mA??) is a closed book for me.

Thank you too for the explanations.

cabonesha

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@Cabonesha

Another attempt at an explanation:

You have a water tank (= battery) with a capacity of 200 liters (= 2.0 Ah) or 250 liters (= 2.5 Ah).

Now you have a thin water hose (=charger with few amps) or a thick water hose (=charger with high amps).

No matter which water hose you use, you can use it to fill the water tank, no matter how big or small the water tank is, it takes 1x less time or is quicker).

Nothing will break if the hose is thin or thick or the tank is large or small

Well, I’m done 😉

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….keep on rockin' 🤘🏼🤘🏼🤘🏼

@POGO 1104

I was just thinking about whether the topic of voltage could also be included in the example, perhaps:

… and if the connection piece for the hose is incorrect (= incorrect current/voltage) you cannot fill the water tank at all.

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Hobby-Nerd ohne wirtschaftliche Abhängigkeiten zur Swisscom

Thank you thank you @POGO 1104

Ah, I’m starting to get a little less flustered🤣 when you explain it with this example.

What confused me is that Ampere is supposed to be the unit of current, if I read Wiki correctly. I interpreted this as how much current flows through at a time x, i.e. the thickness of the water hose when the water barrel is emptied. If I now water my plant (i.e. my battery-operated device) with a thicker hose, I was afraid that the water hose could damage this plant because it cannot bear the increased pressure.

Cabonesha

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