Does anyone know whether it's safe to leave sealed-lead-acid battery-powered TA2020 and TA2021 amps switched on but quiescent while the battery is connected to a maintenance or float charger?
The battery will be a 14ah gel, and the charger either an 'Optimate' or 'Accumate'. These bulk charge at 14.3V (@ 0.8A and 1.2A respectively) and then maintain a 13.6 float charge.
What I mean is, I'd like to leave the amps on 24/365, turning the charger off when actually listening. For example, might it be that even if they don't go pop the moment the charger is switched on, would they be quietly stressed and die prematurely?
The amps are Indeed TA2020 and SMSL SA-S3 TA2021 (the SMSL is actually spec'd for 14V and has this figure on the rear panel). I gather that the Lepai TA2020 has protection circuitry that cuts power to the chip over 13.6V.
A lot of people opine that anything over 13.6V is living dangerously, and yet the data sheets for both chips state a maximum of 14.6V (supply voltage / Vdd - the TA2024 is different, max 13.2V) - they were, after all, intended to be used in vehicle applications where such voltage is normal.
?????????????
The battery will be a 14ah gel, and the charger either an 'Optimate' or 'Accumate'. These bulk charge at 14.3V (@ 0.8A and 1.2A respectively) and then maintain a 13.6 float charge.
What I mean is, I'd like to leave the amps on 24/365, turning the charger off when actually listening. For example, might it be that even if they don't go pop the moment the charger is switched on, would they be quietly stressed and die prematurely?
The amps are Indeed TA2020 and SMSL SA-S3 TA2021 (the SMSL is actually spec'd for 14V and has this figure on the rear panel). I gather that the Lepai TA2020 has protection circuitry that cuts power to the chip over 13.6V.
A lot of people opine that anything over 13.6V is living dangerously, and yet the data sheets for both chips state a maximum of 14.6V (supply voltage / Vdd - the TA2024 is different, max 13.2V) - they were, after all, intended to be used in vehicle applications where such voltage is normal.
?????????????
Well, I was just perusing the Boominator thread, and Saturnus mentioned something that sent me back to the data-sheets. Absolute max. voltage for both chips is 16V, and they are actually spec'd to run continuously at 14.6V.
Given this, I can't see how 14.3V while quiescent could possibly harm the amps.
Am I missing something here?
Given this, I can't see how 14.3V while quiescent could possibly harm the amps.
Am I missing something here?
- Status
- Not open for further replies.