Mazda3 doesn't seem to want to start immediately?

[SparkYellow]

I use this for two cars that are not driven regularly https://a.co/d/fWc2Zx0

Most of chargers come with ring connectors (in addition to the black/red jaws/clamps) that you can connect to the battery terminals and just leave them there. That way you can connect and disconnect the charger without popping the hood.

I also keep a portable jumper pack in my daily driver. If your car gets decent amount of sun during the day, then solar chargers are very convenient as mentioned already. I have two other cars sitting in high wind environments so I fix the panel to the hood.

 

[TheMAN]

They're not the same. The booster takes the place of another car when your battery is dead and you need a jump. It's not a trickle charger.
'
I think the 1A (amp) means it will maintain the current state of the battery but not increase it. 2A will slowly charge the battery. When I put the charger on my battery after a couple weeks of normal driving (lots of trips less than 5 miles) 2A takes about 16 hours to bring it up to fully charged. 12A will charge the battery up in about an hour or less.

1Ah might charge a car battery, but it will be a struggle... battery tenders for cars have a minimum 1.25Ah for a very gentle recharge without failing to do so... anything less works best for ATVs, alarm batteries, etc

I would not try to recharge a battery at more than 7Ah as it will heat up the battery and hurt the cells

 

[TheMAN]

I use this for two cars that are not driven regularly https://a.co/d/fWc2Zx0

Most of chargers come with ring connectors (in addition to the black/red jaws/clamps) that you can connect to the battery terminals and just leave them there. That way you can connect and disconnect the charger without popping the hood.

I also keep a portable jumper pack in my daily driver. If your car gets decent amount of sun during the day, then solar chargers are very convenient as mentioned already. I have two other cars sitting in high wind environments so I fix the panel to the hood.

solar panels still works behind a windshield, no need to have it outside in the elements

 

[SparkYellow]

By ring connectors I mean something like this. I also use the quick-disconnect (green) on the car that I am working on. It's easier to twist off the green knob than taking the whole terminal connector off.

 

[SparkYellow]

solar panels still works behind a windshield, no need to have it outside in the elements

The low output of the panel and tint on the windshield may have contributed to the low charge in my case.

 

[SparkYellow]

For the CX-3, I route the charger-connector wire from a gap in the plastic trim piece and let the end sit next to the base of the wiper arm. For the R56, the battery sits right in front of the cabin air filter port so I push down the filter a bit to route the wire into the cabin.

 

[TheMAN]

The low output of the panel and tint on the windshield may have contributed to the low charge in my case.