This might not be a popular choice in the US but I've had excellent results with YUASA. They're a massive Japanese company that does batteries for just about everything. I've got one in my 2000 Range Rover because that thing has a ton of funky 90s electronics that are very picky on voltage. 2000 CCA spins that V8 and keeps all the chips and bits happy at the same time no matter what the weather.
i have had good luck with East Penn Manufacturing Deka batteries. I sold them back in the early 2000s and have always used them in everything i could get them for .
Seasoned Member
I installed an Optima Yellow Top date 04/08 and it's still working well nearly the same as when new. When ever it became deleted I always put it on an AGM charger overnight. Paid approx. $150.00 at a Costco. I don't know what I'll replace the Yellow Top with when it goes. My ZJ has a new EverStart installed a couple of months ago.
I also purchased a Sears Diehard Platinum AGM Group 31 sometime after the Optima and used it as a second (dual) battery in an XJ. I had a manual switch to connect it the the alternator and didn't as often put it on a agm charger. The Sears battery last time checked from what I determined held a charge but it seemed to become depleted sooner. So I've put it on a very low current desulfator, connected to a trickle charger. I don't know how well they work, their are these low current desulfators, that pulse the batteries supposedly performing desulfation. However it may take months to see any results. Sometimes there installed permanently to prevent sulfation.
I think perhaps how and how well a battery is maintained may influence it's life expectancy. If on a 3 stage charger 24/7 some batteries such as for RVs, etc. are going to last 10-12 years and longer up to around 15 years.
I seem to remember reading to maintain a battery for longer periods it should be on a trickle charger when not in use. If you let a battery sit and only is used when starting and running a vehicle will likely shorten a batteries life expectancy. Starting batteries for cars are often replaced every 3 to 5 years under normal use.
As for the best battery to purchase I think cost is usually an issue, usually higher the cost the better battery, the heavier duty the build will be, heavier plates are used in flooded batteries. I remember reading a few years ago that statistically nationwide (in the US) flooded batteries are replaced nearly twice as often as AGMs. Which I think is partially due to AGMs require no maintenance (other than keeping them charged) and flooded batteries are often neglected and not maintained properly.
AGMs have gained popularity, however flooded batteries I think can last nearly as long as AGM if well maintained. e.g. RV flooded batteries that are on a 3 stage charger 24-7 and well maintained (electrolyte levels, testing with hydrometer, etc.) potentially can last up to around 15 years. Deep Cycle (flooded) batteries such as Tojans, etc. potentially can last up to around 20 year if well maintained and on a 3 stage charger.
I would say you should be able to extend the life of either an agm or flooded battery used as a starting battery by putting it on an trickle charger when not in use.
I also purchased a Sears Diehard Platinum AGM Group 31 sometime after the Optima and used it as a second (dual) battery in an XJ. I had a manual switch to connect it the the alternator and didn't as often put it on a agm charger. The Sears battery last time checked from what I determined held a charge but it seemed to become depleted sooner. So I've put it on a very low current desulfator, connected to a trickle charger. I don't know how well they work, their are these low current desulfators, that pulse the batteries supposedly performing desulfation. However it may take months to see any results. Sometimes there installed permanently to prevent sulfation.
I think perhaps how and how well a battery is maintained may influence it's life expectancy. If on a 3 stage charger 24/7 some batteries such as for RVs, etc. are going to last 10-12 years and longer up to around 15 years.
I seem to remember reading to maintain a battery for longer periods it should be on a trickle charger when not in use. If you let a battery sit and only is used when starting and running a vehicle will likely shorten a batteries life expectancy. Starting batteries for cars are often replaced every 3 to 5 years under normal use.
As for the best battery to purchase I think cost is usually an issue, usually higher the cost the better battery, the heavier duty the build will be, heavier plates are used in flooded batteries. I remember reading a few years ago that statistically nationwide (in the US) flooded batteries are replaced nearly twice as often as AGMs. Which I think is partially due to AGMs require no maintenance (other than keeping them charged) and flooded batteries are often neglected and not maintained properly.
AGMs have gained popularity, however flooded batteries I think can last nearly as long as AGM if well maintained. e.g. RV flooded batteries that are on a 3 stage charger 24-7 and well maintained (electrolyte levels, testing with hydrometer, etc.) potentially can last up to around 15 years. Deep Cycle (flooded) batteries such as Tojans, etc. potentially can last up to around 20 year if well maintained and on a 3 stage charger.
I would say you should be able to extend the life of either an agm or flooded battery used as a starting battery by putting it on an trickle charger when not in use.