Where I live, in the woods of Maine, we have power outages.

Solar panels and all that stuff is quite expensive, but old car batteries
("old" is when it doesn't get my Diesel started in subzero temps) are not.

To make things just a bit comfi it would be nice to leave it in place with
a
charger attached (right now I tote the charger around when needed).

Many things will run right off the batterie(s), others might need an
inverter.

So basically I am talking about a photovoltaic system without the
photovoltaic panels, sort off.


So which chargers can I leave permanently attached to a battery?

The word 'trickle charger' or 'shore power' comes to mind. How is that
different from my old Sears charger which does me good for many years
already (but I unhook it after a day at most!).
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Don't know how much power is involved and the average duration of an outage
, but the simplest way to keep power during brownouts is to use a
UPS=Uninterruptable Power Supply with integral batteries . I am using a make
APC=American Power Corporation , model Back-ups Pro 650 (650 Volt * Amp or
650 VA ,which equals 650 Watts when power factor =1) Back -up time at full
load is approx 15 minutes. UPSes are also available for connection to
external batteries .

Frank GM0CSZ / KN6WH