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I'm going to disagree on the order of removal and installation. Always remove the negative terminal first and reinstall it last. This eliminates the possibility of shorting a tool between the positive terminal and frame ground while removing/installing it.
Keep in mind the battery is a critical car component. The price is low enough to take the risk of early failure but have a backup plan (keep a lithium jump starter in the trunk, it's useful to have anyways) and don't expect warranty service (if any at all) to get you another battery before you buckle and pick one up locally.
The benefit of purchasing locally is just driving in to get the battery tested and swapped if defective within the 3 year warranty. On that note, don't go to Costco for batteries, they suck ever since they started the pro-rated refund.
Edit: Not dumping on the deal, I bought the H6. No core charge for recycling means I can keep the existing one which is mostly functional as a backup (remote start was failing which is a high cutoff). I figured my scenario is low risk.
Hey didn't you do the HP desktop builds a few months back?
Yeah 4 years on a flooded battery is a long life in my experience. You might want to check out blogs on your Tacoma's charge system putting out high enough voltage for AGM use. Seems I remember Taco owners having problems with the upgrade due to low charge system float voltage
Based on what I'm seeing, a simple diode install inline with your ALT-S fuse tricks the ECM into telling the alternator to provide the 14.4V+ that AGM batteries want. Can be purchased on sites like eBay for $25 or so, but easy enough to fabricate yourself. The striped end of the diode will likely go towards the fused side of the circuit (the 0V side when fuse is removed)
Digging in a little further, a diode has an inherent forward voltage drop of .2-1V, depending on diode type. The ECM sees this circuit as its system voltage monitoring point and adjusts the alternator's output upwards by that same amount, making your AGM battery a happy camper without side effects.
Last edited by BabyBubba January 9, 2025 at 09:46 AM.
I've had similar good luck with AGMs in automotive, motorcycle, and lawn equipment applications. They're my preferred battery type for the last several years, and prices are coming down slowly with global competition in place. I'm still hesitant to adopt LiFePO4 in these applications; their additional complexity and propensity for combustion don't sit well with me.
There's currently a pretty sweet deal on a U1 lawn/garden AGM for $37 shipped on Ebay. I bought one a while back and it's doing a good job on my Gravely zero turn mower (24HP Kawasaki FR730V).
I ordered a Group 48/H6 in November, I paid $121.24.I'm on the East Coast, and they shipped out of Atlanta if I remember correctly. Not only that, but I received the battery in 2 days, one day faster than they predicted when I ordered it. By the way, the shipping box was one of the best I've seen for a battery. .
I think he was implying of the current wildfires in LA which would disrupt any logisticS.
I just put one of the H5 ones in my 2022 Kia EV6 and it's been great. Shipping was fast as well, would buy again. Great price for what I think is a good battery.
Keep in mind the battery is a critical car component. The price is low enough to take the risk of early failure but have a backup plan (keep a lithium jump starter in the trunk, it's useful to have anyways) and don't expect warranty service (if any at all) to get you another battery before you buckle and pick one up locally.
The benefit of purchasing locally is just driving in to get the battery tested and swapped if defective within the 3 year warranty. On that note, don't go to Costco for batteries, they suck ever since they started the pro-rated refund.
Edit: Not dumping on the deal, I bought the H6. No core charge for recycling means I can keep the existing one which is mostly functional as a backup (remote start was failing which is a high cutoff). I figured my scenario is low risk.
Also good to look for a battery refurbisher. I got my car battery for $65 installed. It's a refurbished battery with 1yr warranty from a mom n pop shop.
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sorry car batteries i get from dealerships or local shops that can actually warranty it easily. I've had several batteries die on me and on two of my cars just getting the battery installed is a big female dog!
Darn. I have a Tacoma as well and was about to pull the trigger on this AGM. Didn't realize Im better off with the lead based battery. Is this true? Should I stick with lead battery
Darn. I have a Tacoma as well and was about to pull the trigger on this AGM. Didn't realize Im better off with the lead based battery. Is this true? Should I stick with lead battery
An easy check is to measure your battery voltage with the truck running at 2,000 RPM or so. If it settles at 13.9V or less, AGM might not do well without the mod mentioned in earlier comments. If you're at 14.2V or more, it will likely be fine. For some reason Tacomas have a lower factory set charging float voltage than most other modern vehicles. This includes FJs and other Toyotas as well.
If I may elaborate a bit, AGMs use similar lead plate and acid chemistry as traditional flooded batteries, with the addition of a fiberglass mat that the acid is absorbed into for less evaporation and more stability in extreme conditions. They're always maintenance free and much less likely to leak. The glass mat construction comes with a slightly higher charging voltage requirement for the battery to reach full charge. Most modern vehicles are designed with AGM use in mind and will readily accommodate them, but a few will not without adjusting charge voltage a little higher than factory. Otherwise the battery will never reach full charge and premature failure will result.
Last edited by BabyBubba January 9, 2025 at 11:12 AM.
Keep in mind the battery is a critical car component. The price is low enough to take the risk of early failure but have a backup plan (keep a lithium jump starter in the trunk, it's useful to have anyways) and don't expect warranty service (if any at all) to get you another battery before you buckle and pick one up locally.
The benefit of purchasing locally is just driving in to get the battery tested and swapped if defective within the 3 year warranty. On that note, don't go to Costco for batteries, they suck ever since they started the pro-rated refund.
Edit: Not dumping on the deal, I bought the H6. No core charge for recycling means I can keep the existing one which is mostly functional as a backup (remote start was failing which is a high cutoff). I figured my scenario is low risk.
Actually Costco has great pricing for Interstate Batteries brand. I'm sure members were abusing the return policy, make sense a car battery should be pro-rated after 3 years.
Great agm batteries. I've got four and they shipped quick +3 year warranty and no core charge. Mine shipped out of Houston Texas
——My Tacoma is charging @ 14.29 factory idle, not sure where other information comes from?
Last edited by leek69 January 9, 2025 at 11:21 AM.
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Going on 2 years since I ordered and installed mine. No complaints and saved me a small fortune over Ford or even Walmart. I do put it on a the charger a couple times in the winter, but it always reads 97% charged before charging.
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every little bit counts right
The benefit of purchasing locally is just driving in to get the battery tested and swapped if defective within the 3 year warranty. On that note, don't go to Costco for batteries, they suck ever since they started the pro-rated refund.
Edit: Not dumping on the deal, I bought the H6. No core charge for recycling means I can keep the existing one which is mostly functional as a backup (remote start was failing which is a high cutoff). I figured my scenario is low risk.
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https://www.ruralking.com/rural-k...k-agml3-48 [ruralking.com]
Their FLA batteries are made by Exide, so I assume these are, too.
Yeah 4 years on a flooded battery is a long life in my experience. You might want to check out blogs on your Tacoma's charge system putting out high enough voltage for AGM use. Seems I remember Taco owners having problems with the upgrade due to low charge system float voltage
thanks for the heads up on the compatibility issue
I found this > https://www.tacomaworld
thanks for the heads up on the compatibility issue
I found this > https://www.tacomaworld.com/threa...de.604478/ [tacomaworld.com]
Digging in a little further, a diode has an inherent forward voltage drop of .2-1V, depending on diode type. The ECM sees this circuit as its system voltage monitoring point and adjusts the alternator's output upwards by that same amount, making your AGM battery a happy camper without side effects.
There's currently a pretty sweet deal on a U1 lawn/garden AGM for $37 shipped on Ebay. I bought one a while back and it's doing a good job on my Gravely zero turn mower (24HP Kawasaki FR730V).
https://www.ebay.com/itm/395327741922?
The benefit of purchasing locally is just driving in to get the battery tested and swapped if defective within the 3 year warranty. On that note, don't go to Costco for batteries, they suck ever since they started the pro-rated refund.
Edit: Not dumping on the deal, I bought the H6. No core charge for recycling means I can keep the existing one which is mostly functional as a backup (remote start was failing which is a high cutoff). I figured my scenario is low risk.
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thanks for the heads up on the compatibility issue
I found this > https://www.tacomaworld.com/threa...de.604478/ [tacomaworld.com]
If I may elaborate a bit, AGMs use similar lead plate and acid chemistry as traditional flooded batteries, with the addition of a fiberglass mat that the acid is absorbed into for less evaporation and more stability in extreme conditions. They're always maintenance free and much less likely to leak. The glass mat construction comes with a slightly higher charging voltage requirement for the battery to reach full charge. Most modern vehicles are designed with AGM use in mind and will readily accommodate them, but a few will not without adjusting charge voltage a little higher than factory. Otherwise the battery will never reach full charge and premature failure will result.
Yes, I understood that.
spectheintro asked how quickly they ship, which is why I mentioned the time it took for my battery to arrive.
They seem to have inventory on both coasts.
The benefit of purchasing locally is just driving in to get the battery tested and swapped if defective within the 3 year warranty. On that note, don't go to Costco for batteries, they suck ever since they started the pro-rated refund.
Edit: Not dumping on the deal, I bought the H6. No core charge for recycling means I can keep the existing one which is mostly functional as a backup (remote start was failing which is a high cutoff). I figured my scenario is low risk.
——My Tacoma is charging @ 14.29 factory idle, not sure where other information comes from?
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