Exide Extreme N70EX v Century Marine Pro 720

Um, no, you didn't read right. Or maybe I didn't explain things very well.


Regardless, you didn't answer my question?! :(


By way of further explanation, I have the main starting battery AND an auxiliary battery under the bonnet. I am replacing the auxiliary battery.


The AGM deep cycle battery is in a portable powered battery box which gets used for various activities. It is NOT usually kept in the car.


REAL LIFE EXAMPLE
If we're camping for a few days I am in the habit of running a fridge from the auxiliary battery at night while we're sleeping, but running it from the powered battery box (AGM battery) during the rest of the time. This means when driving away from the campsite during the day the auxiliary battery would get a top up, and at night the AGM battery would get a rest. This setup/process would run the fridge for between 4 & 5 days depending on the circumstances.

oops that should read MP720

I should have mentioned - the specs show Amp Hours, Cranking Capacity, and Reserve Capacity of the MP720 is 20 to 25% larger than the Exide

Phil that’s a very good price – anyway a lot of AGM’s void their warranties when used in the engine bay.

When it comes to any battery under the bonnet or in a hot position AGM batteries don't like it. If you want that deep cycle which is designed to be drained right down then recharged you have to use a lead acid one in that position. They are a little cheaper than the gel or agm. AGM are great for your camper, caravan or to just power a few things on a camp site. If you really want to run a AGM battery which are a better batery by far to lead acid ones you can relocate it to the back or some where under the car. With a AGM you can mount them on their side if you want so you can tuck them in underneath some where. Most lead acid bateries that are normal or deep cycle when they fail it's due to sulfation mostly which literaly in affect cuts the battery in half. You can get desulfation units or a battery chargers eg. I use the Projector model with reconditioning mode and it works well. I had a standard 4x4 battery and after 2.5 years it would go from full charge to 9v in a couple of days. Most of us just recycle it and buy a new one. I reconditioned it with the Projector charger 2 to 3 times over and hey presto it's working fine. Saved myself $150.00 Stats show that 85% of batteries tossed are retieveable. Ok the Projector charger costs around the $300 to $340 mark and $285 with a thrown in light if you know how to wheel and deal. LOL This unit has all the different science's for the different types of batteries out there, lead acid, Gel, Agm, Calcium batteries charge in their own unique ways and on my unit you have 2, 6, 12, 25 amps to charge and the recon mode as well as being a power supply too. Worth every cent. For those who just aren't sure I don't recommend stuff to people unless I've used it and very happy with it's preformance too. I too thought it's a big expence but so glad I bit the bullet and bought one. Great thing to is you can take a invertor genny and the 25amp charger and get yourself out of the bleep and not have to worry about the spare of the spare of the spare.