Page 2 of 2

Re: Compatibility of rechargable batteries

Posted: 09 Jan 2020, 09:58
by revrob
As a newbie, Iā€™d welcome an update on how rechargeable are performing, please - and which ones are best to use.

Many thanks.

Robert

Re: Compatibility of rechargable batteries

Posted: 09 Jan 2020, 15:14
by mhaga
Hi,
Have not seen any reason for testing rechargeables yet. Still going strong at 100% on my Lithium metal batteries.
They are only days from lasting a year now and have performed very well. Inserted them on 4 valve thermostat 16. January 2019. All are still at 100%
I can recommend these batteries if you don't want to use rechargeable batteries.
Any news on rechargeable would be interesting for me as well, as I will consider it when my current batteries are empty.

BR
/mhaga

Re: Compatibility of rechargable batteries

Posted: 09 Jan 2020, 22:25
by adema
Could you please let me know the exact brand and model of lithium battery are you using ?

Thanks in advance.

Re: Compatibility of rechargable batteries

Posted: 10 Jan 2020, 14:55
by mhaga
Hi,
I use these batteries:

http://data.energizer.com/pdfs/l91.pdf

BR
/mhaga

Re: Compatibility of rechargable batteries

Posted: 15 Jan 2020, 15:38
by adema
mhaga wrote: ā†‘
10 Jan 2020, 14:55
Hi,
I use these batteries:

http://data.energizer.com/pdfs/l91.pdf

BR
/mhaga
Thanks for information, I'll try them.

Re: Compatibility of rechargable batteries

Posted: 18 Jan 2020, 21:51
by Simon_the_Fin
For me Varta lithium batteries lasted only 2.5 months on one of the valves. Might need to use some crc on the mechanical part of the valve. Currently using Nimh rechargable and those last enough but would be nice to get more out of them.

Re: Compatibility of rechargable batteries

Posted: 04 Feb 2020, 18:36
by schmaker
Just a quick update.

I run NiMH + NiZn combination at the moment.

NiZns are running strong so far, i changed NiMHs 3 - 4 times, NiZn didnt needed charge at all.

Re: Compatibility of rechargable batteries

Posted: 13 Feb 2020, 11:24
by tomkol
tomkol wrote: ā†‘
26 Nov 2019, 21:29
I`m currently running 11 valves in our flat and also came across this topic. Eneloop & Pro show only 50% right from the start, 1.2V seem to be not enough.
Now I gave Blackube LiOn 1.5V rechargeable batteries a try, installed the first two valves 2 months ago and they work perfect and still show as "full" in the app.
Seems to be a perfect fit for those valves!

Yes they are a bit high in price, but charge very fast and easy by just plugging in a Micro-USB cable!

https://www.amazon.de/gp/product/B07J9P ... UTF8&psc=1
https://www.amazon.de/gp/product/B07D9K ... UTF8&psc=1
UPDATE: First installed rechargeables are still running after almost 5 months now! Working really well!

Re: Compatibility of rechargable batteries

Posted: 22 Feb 2020, 09:57
by schmaker
It seems that NiZns also will make it through whole season without recharging. I'm just wondering if they will show that they are discharged, or will just die without warning.

Re: Compatibility of rechargable batteries

Posted: 13 Jan 2021, 10:17
by mhaga
HI again,
Short update. My batteries are still going strong. Indicator show 100%. I am 3 days from 2 years, since I changed them.
Very satisfied by this and I think I have only done one recalibration on one valve thermostat, during this period.
For single use batteries, the ones mentioned above, is the ones to try out. Powerful and long lasting. Seems like the perfect match for the valve thermostat and the use.

BR
mhaga