mjvesq1969 Posted February 26, 2018 Posted February 26, 2018 can anyone give me a simple calculation (not an app) for calculating what size battery i require, taking in quiescent, in alarm and time of back up needed...ta Quote
al-yeti Posted February 26, 2018 Posted February 26, 2018 Do you know ohms law? Do you have the current consum for each device to start with Quote
al-yeti Posted February 26, 2018 Posted February 26, 2018 On 26/02/2018 at 20:13, PeterJames said: Expand You rely on that for large systems ? Quote
PeterJames Posted February 26, 2018 Posted February 26, 2018 On 26/02/2018 at 21:15, al-yeti said: You rely on that for large systems ? Expand Its accepted by NSI Quote
al-yeti Posted February 26, 2018 Posted February 26, 2018 On 26/02/2018 at 21:23, PeterJames said: Its accepted by NSI Expand Come on man , you know what I mean , do you go by that strictly or use own methods as well Or got a Chinese calculator ? Quote
PeterJames Posted February 26, 2018 Posted February 26, 2018 On 26/02/2018 at 21:36, al-yeti said: Come on man , you know what I mean , do you go by that strictly or use own methods as well Or got a Chinese calculator ? Expand It doesnt need to be an exact science, who has powercuts in this country nowadays? Quote
al-yeti Posted February 26, 2018 Posted February 26, 2018 On 26/02/2018 at 22:07, PeterJames said: It doesnt need to be an exact science, who has powercuts in this country nowadays? Expand Moderators lounge? Quote
sixwheeledbeast Posted February 27, 2018 Posted February 27, 2018 On 26/02/2018 at 14:00, mjvesq1969 said: calculating what size battery i require, taking in quiescent, in alarm and time of back up needed...ta Expand So the logical first question is:- Do you know how to measure the quiescent, alarm and what standby time is required for your system? Garbage in, garbage out... Quote
mjvesq1969 Posted February 27, 2018 Author Posted February 27, 2018 yes mate. just looking for an easy calc really Quote
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