[OpenTRV-interest] Frequent non-communication periods between hub and its valve

Damon Hart-Davis EMAIL ADDRESS HIDDEN
Sat Mar 28 11:36:41 GMT 2015


Hi,

OK, that’s interesting.  That seems pretty low to me, and may not be properly powering the receiver when it comes up.

NiMH (for example) probably has lower ESR and might in fact be better here for current spikes even though the low-battery indicator spends most of the time on.

Do you have fresh cells to pop in at least briefly as a test, of any chemistry to hand?

(I shall be very happy when our all-in-one solution is out the door!)

Rgds

Damon


> On 28 Mar 2015, at 11:28, EMAIL ADDRESS HIDDEN wrote:
> 
> > What battery type are you using (eg NiMH, NiCd, alkaline)?
> 
> Alkaline (original as received with FHT8V)
> 
> > Would it be possible to measure the battery voltage?
> 
> 2.684v (NOT in situ - FHT8V restarted)
> ----Original Message----
> From: EMAIL ADDRESS HIDDEN
> Date: 28/03/2015 07:50
> To: "Open, non-developer list for interested parties"<EMAIL ADDRESS HIDDEN>
> Cc: <EMAIL ADDRESS HIDDEN>
> Subj: Re: [OpenTRV-interest] Frequent non-communication	periods	between	hub and its valve
> 
> 
> > On 28 Mar 2015, at 07:35, EMAIL ADDRESS HIDDEN wrote:
> > 
> > 
> >     Battery sumbol eventually reverts over ~10 minutes to NO battery (symbol) i.e. big power draw whilst valve opens, battery slowly recuperates.
> 
> What battery type are you using (eg NiMH, NiCd, alkaline)?
> 
> Would it be possible to measure the battery voltage?
> 
> Rgds
> 
> Damon
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