H all - first post from me for quite a while .... (been lurking though).
Wondering if anyone has tried using something like one of these :-
https://www.ebay.co.uk/itm/12000mAh-600A-Car-Jump-Starter-Booster-Emergency-Battery-Charger-USB-Power-Bank/183535100354?_trkparms=ispr%3D1&hash=item2abb8b61c2:g:hT8AAOSwQNNenV~m&enc=AQAFAAACYBaobrjLl8XobRIiIML1V4Imu%2Fn%2BzU5L90Z278x5ickk8Fd9si%2FIbtWQr%2BhnlRwjDWlEb4p1MloS0%2BiP8g7OxqG6dQb66QGzIvBjkBNKPkRYXcsDMETC97CylW3fhM6QlF5xKoUSAtPPvBDS3%2FbKZ%2By8NfGAi6nphlDDUtGhjli09oklm8WcdVeoh8uVP8u4mJVfRmo8i%2BHHZ%2Fgtw5iDsEqfvp6PXHB11AvxVqySNLPamCUkXq9bi9BwGJK2KQMS7%2F1xd9t4Vy%2BRhZZnzMpGx9YGJ2D%2FxgpxR11llM%2BtbuacRHOYQgO4ZPNbtsTUi2c7EvOKPW22z2lb1jVv4Q9gLeBIFh8yMjzm%2BgmilaDpqq%2BSBhYAvObORTM4lKaKBqGPOb3Fx0RebBfMo2H%2BlcVJYX3uyhOh67eqE9z9%2FUnvblu4e8kV%2FJj%2BzYUfKs16Rt8g8FmuJ6Vxj0grv8bQFQiy9hpFfdL%2BdXm4EGUBE0CuJviq1fg%2BQPaGKt8JT5kfTnJNXmuCQSB5TpIwzbQXJJqnAVsBWAyyDvPbWm76hYE2JFxPbB5075SQZrkI%2FulG9o2sqebQdzU2TTr7zHqbPBPZZcO94aynVgInrnU0Nib1PV6CcgAeZcYUeytwmNyho2ye4l3J%2FwU3U67O7XhtpzMzrpn1PsZeEj8zoDLfBa4b8Hwu5P1%2F30hT3v1wiyEOdpkmVmVCP0KArVaIUQ%2BLXF4Mtfyz7F%2FzFsvv9P2I4kNIRILEZXkKu7fOAA60rR%2F80vsH%2Fy2yXfx3s1jxKWpFonKnnffAW83OEU0e2dt6mUmWVZlc&checksum=18353510035495acc1586cba41be99bc0ee2d0674999" rel="nofollow - https://www.ebay.co.uk/itm/12000mAh-600A-Car-Jump-Starter-Booster-Emergency-Battery-Charger-USB-Power-Bank/183535100354?_trkparms=ispr%3D1&hash=item2abb8b61c2:g:hT8AAOSwQNNenV~m&enc=AQAFAAACYBaobrjLl8XobRIiIML1V4Imu%2Fn%2BzU5L90Z278x5ickk8Fd9si%2FIbtWQr%2BhnlRwjDWlEb4p1MloS0%2BiP8g7OxqG6dQb66QGzIvBjkBNKPkRYXcsDMETC97CylW3fhM6QlF5xKoUSAtPPvBDS3%2FbKZ%2By8NfGAi6nphlDDUtGhjli09oklm8WcdVeoh8uVP8u4mJVfRmo8i%2BHHZ%2Fgtw5iDsEqfvp6PXHB11AvxVqySNLPamCUkXq9bi9BwGJK2KQMS7%2F1xd9t4Vy%2BRhZZnzMpGx9YGJ2D%2FxgpxR11llM%2BtbuacRHOYQgO4ZPNbtsTUi2c7EvOKPW22z2lb1jVv4Q9gLeBIFh8yMjzm%2BgmilaDpqq%2BSBhYAvObORTM4lKaKBqGPOb3Fx0RebBfMo2H%2BlcVJYX3uyhOh67eqE9z9%2FUnvblu4e8kV%2FJj%2BzYUfKs16Rt8g8FmuJ6Vxj0grv8bQFQiy9hpFfdL%2BdXm4EGUBE0CuJviq1fg%2BQPaGKt8JT5kfTnJNXmuCQSB5TpIwzbQXJJqnAVsBWAyyDvPbWm76hYE2JFxPbB5075SQZrkI%2FulG9o2sqebQdzU2TTr7zHqbPBPZZcO94aynVgInrnU0Nib1PV6CcgAeZcYUeytwmNyho2ye4l3J%2FwU3U67O7XhtpzMzrpn1PsZeEj8zoDLfBa4b8Hwu5P1%2F30hT3v1wiyEOdpkmVmVCP0KArVaIUQ%2BLXF4Mtfyz7F%2FzFsvv9P2I4kNIRILEZXkKu7fOAA60rR%2F80vsH%2Fy2yXfx3s1jxKWpFoNKnnffAW83OEU0e2dt6mUmWVZlc&checksum=18353510035495acc1586cba41be99bc0ee2d0674999
... to power sound system.
On the surface they seem like a possible solution, but I'm wary of the quality of the cells in these kind of gadgets. Does the panel think the ability to start a car (very heavy current draw for very short time) implies the ability to supply much less current for much longer times ? If 12Ah is real ... well it could be a decent option to play certain amps.
The ebay supplier is offering "60day refund" - so I'm tempted to buy with the option to return if not up to scratch - but "it won't run my sound system" might not be as strong as "it won't start my car" as a reason for returning (especially as I have don't have a car :-) ).
------------- REMEMBER....POLITICIANS AND DIAPERS SHOULD BE CHANGED OFTEN AND FOR THE SAME REASON
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