CTEK MXS 5.0 vs NOCO GENIUS 3500

The CTEK MXS 5.0 seems roughly akin to my (North American) Multi US 4.3, albeit with 5.0 amps vs 4.3. I see there's also MXS 3.8 on the GB site, another worth considering. The latter is (like the name) rated 3.8 amps.

I've got a feeling either the 3.8 or 5.0 would be fine, but for the record, Owner's Manual says 4.2 amp max (North American version, page 439).

I have both the (North American) Multi US 3300 and 4.3. I now use the 4.3, figuring it's a bit faster, though I don't really see any difference in practice. The 3300 (akin to GB MSX 3.8 in style/functions) I find simpler/easier to use. It's cheaper, likely just as good.

Sorry, no clue about the other brand.

 

I have a Genius 3500 and I used it to charge up my new replacement Canadian Tire battery (probably Exide AGM) before installation. Seems to work fine. I use a "Battery Tender" on Pearl S in winter when she is hibernating. It's on there now in fact. The Genius is on the workbench for mucking about with batteries. I've used it on the FJ Cruiser once, for "test purposes".

 

You say with multimeter you get 12 volt? Like 12.0?

Especially with freshly charged battery, with surface charge, not good. Should be close to 13 volt.

An ex battery? (Monty Python Pet Shop sketch)

Direct connection of something like Solar BA5 at the posts would resolve the questions.

 

Yeah mine was around $70 Canadian dollars? Any competent battery retailer should have a pro version of the same, and would likely be willing to do a gratis check.

What's the history of your battery again? If I recall correctly it's not that old?

If it's in fact got at-rest voltage around 12.0 volt, might be time to wash your hands of it, start again. If a battery sits for protracted time at low voltage it's hard to recover bring it back.