Battery storage?

Question

Batteries

Hello everyone, just (again) the batteries in the keyboard are dead. I climbed for spares, since I have 6 pieces, and they are all dead! Although I charged them a month or a half ago. Batteries energizer rechargeable. Question: how do you deal with such a disease and is there any tricky way so that the charge does not leave them so quickly?

Answer 1

You are using metal hydride (NiMH) batteries.
In these batteries (when compared with lithium ones), the self-discharge current is quite high. Unfortunately, this is not curable.
Also take note - it is not recommended to store such batteries charged (again, unlike lithium batteries, which are quite the opposite - it is not recommended to store them discharged) - this reduces their service life.
How to deal with self-discharge? No way. Different manufacturers have different series and they have different self-discharge. There are successful ones, there are completely unsuccessful ones.
For example, AA Philips 2450mAh (8 pcs) work great for me, and AA Philips 2700 mAh (8 pcs) are nowhere worse ... it seems that their capacity is not 2700 at all, but 1000. And no “pumping” helps. And with other manufacturers - there are good GPs, there are terrible ones - I have a dozen of them - both AA and AAA. There were Lenmar - good in capacity, if not for one thing - within a year and a half, they all failed (and these are 8pcs AA and 8pcs AAA).
Samsung 2700mAh (4pcs). Three are working fine, one battery is 4 times smaller in capacity ... the marriage of a particular battery.
Sony 2500mAh - I can’t say anything bad - they are quite normal.
Camelion AAA 1000mAh (8pcs) - not bad, like sony - there was no marriage, they work well.
As you can see, I buy in sets, so that there would be no hits on a frank marriage of any one battery. Charges (at home and at work) are also normal, 4-channel, where each battery is charged separately, and not in a “heap”, where there can be an undercharge and it is easy to recharge.
Someone will doubt the veracity due to the number of batteries mentioned - but it's true.
I have a lot of batteries as a fan of such devices. Mice (4pcs), keyboards, portable speakers (2pcs), a couple of soap dishes, a radio tape recorder, a bunch of flashlights for hiking and the like, and that's all - on AA or AAA (even in the radio tape recorder, which is under "C" - I use special adapters for AA batteries). Therefore, the experience gained is not very small.

Answer 2

Look for batteries with low self-discharge - Sanyo Eneloop, for example.

Answer 3

Use batteries with low self-discharge, no?

Answer 4

On this occasion, I know two points:
— Very much affected by wear. A modern rechargeable battery is designed for about 1000 charging processes. The old ones were designed for 200. The more charging processes, the lower the capacity, i.e. dissipate faster.
“Temperature has a big effect. In the cold, they discharge faster. The optimum temperature is room temperature.

Answer 5

Read on the wiki:
en.wikipedia.org/wiki/Rechargeable_battery#Table_of_rechargeable_battery_types

Answer 6

For the keyboard, as for me, it's better to use just batteries. If you get a bad battery, then it will self-discharge faster than the discharge through the keyboard.
Well, or dig in the direction of something like Sanyo Eneloop, they have a low self-discharge.
I'll add a bit of statistics from myself:
I got 4 good Sanyo Eneloops, no problems.
Previously, there were GPs with low self-discharge, 3 lived happily ever after, 1 leaked.
There are also Chinese BTYs at the price of good batteries, one batch was fabulous, it has been living for the second year, the other batch was none, half of the third worked well. But given their cost, you can play roulette.
There were also energizers like yours, they all died at once, losing their capacity very much.
True, I have for a flash, there is a large current for periods, a specific load ...