SLR125 12V 125Ah AGM Battery

SLR125 12Volts, 125AH Deep Cycle, Solar AGM Battery.

On sale: ~~$339.99~~ $269.99

VMAX SLR125 12 Volt 125ah AGM Solar Battery

Part Number: SLR125

Availability: Quantity Discounts & Fast Free Shipping within the 48 States.

Quantity	Price
2 - 3	$264.59
4 - 7	$259.19
8 - 11	$251.09
12 - 19	$245.69
20+	$242.99

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Description
Customer Reviews

SLR125

Nominal Voltage	20Hr Capacity	RC (min)	Energy (kWH)	Terminal Posts	Dimensions	Weight	Charging Current*	Charging Voltage	Float Voltage
12V	125AH	260	1.700	8mm (M8*1.25)	12.9"w x 6.8"d x 8.5"h(8.7"th**)	75lb	8A-35A	14.4-14.9V	13.5V-13.8V

Recommended Charging Options:

AC Chargers: Any Quality Brand AGM- Smart & Microprocessor controlled- charger with the recommended specs above can be used.
Vehicle Alternator: 14V-15V.
RV Converter: 14V-15V.
Solar Panel: 175W-450W (120W may be used if Depth of Discharge would not exceed 50%).
Wind Turbine: 175W-450W.
Charge Controller: 20-UP.

* Warning: Do not use a charger with smaller amperage than the recommended Charging Current shown above.
Maintainers should ONLY be used to maintain a fully charged battery but NEVER as a charger.

Operating Temperature Range:

Discharge: -4~140F
Charge: 14~140F
Storage: -4~140F

Temperature Compensation:

Cycle use: -30mV/C
Standby use: -20mV/C

UPC: 729440163129

BCI Group Codes*:
Matching Termination: 31 (+ on L.H.S. & - on R.H.S)
* Matching is based on closest dimensional specifications. Differences in hold downs and termination may require some accommodations and/or the extension of one or both vehicle's battery cables.

Rating Snapshot

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Average Customer Ratings

4.6

Reliable long lasting batteries

I purchased two of these batteries in 2017 to power my conversion van. There was a solar system that constantly recharged and kept a float charge on them which probably was very good for them. They performed perfectly. They are still usable to this day but I would guess they are only able to hold about 80 percent of the charge they did brand new.

Did you find this helpful? 4 of 4 Found Helpful

Reviewed by: Ivan S. from United States on July 3, 2022 on 1/25/2023

Good battery for emergency power backup

Kept my refrigerator running all night without fully discharging the battery. Power draw was around 135 watts. Planning to buy a second battery to run in parallel for longer running time. Also really like the sealed design so I don't have to worry about fumes or leaks. Very heavy battery though.

Did you find this helpful? 3 of 3 Found Helpful

Reviewed by: Will from USA on 10/12/2022

Excellent product, great price! BEST AGM BATTERY ON THE MARKET! Will order again.

Did you find this helpful? 3 of 3 Found Helpful

Reviewed by: J.M. from WIMBERLY, TX on 10/26/2014

We have been testing batteries for our remote systems for about three years now. The VMaxtank is the timex watch of the bunch, it keeps on ticking. Solid build quality, steady performance at a reasonable price. Many of the battery packs we have tested are much more expensive, but only perform marginally better. We have and will continue to use the Vmaxtanks.

Did you find this helpful? 3 of 3 Found Helpful

Reviewed by: D.Roark from USA on 10/26/2014

These are excellent batteries

I've used the SLR125 in several solar applications and never had any issues. These are excellent batteries, thank you!

Did you find this helpful? 2 of 2 Found Helpful

Reviewed by: John from USA on 5/20/2024

Purchased two 10 years ago

Bought in 2013 and I am amazed they still are going strong. I use them in parallel with my Xantrex ProWatt SW 2000 inverter (also excellent) to run our household full size refrigerator/freezer during power outages. I have run it for several days without having to use mt EU2000 Honda generator. I don’t think I’ve started the generator in a couple years (usually run it off my propane side). I would definitely buy these again (if they ever die).

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Reviewed by: MM from USA on 8/14/2023

As good as lead-acid gets

This is a long-term review. I use these batteries along with a 1500W pure sine wave inverter as a back up for the occasional power failures that happen here in the Northeast US. I purchased one in November 2012, yes, 2012, and another in 2019. They normally run in parallel and provide 12 V @ 250AH nominal to the inverter. However, about once a year I separate them and load test them separately due to the large difference in their age. At a 20 hour rate, they both met or were close to spec when new, 120-128ah each. Because the power failures here are very intermittent this is largely a float application. They only get cycled about 10-15 times per year so I can’t speak to cycle life. But the float life has been great. in my most recent test in May 2022, the older battery comes in at around 101 amp hours and the newer one at 122AH. Getting 80% of new capacity out of a 10 year battery is more than I expected. I have other UPS units in the house that use 9AH AGM batteries, and I have to replace those every three or four years. While the newer LiFePO4 batteries have many advantages over lead acid, they are still significantly more expensive than AGM. and lead acid batteries can be easily recycled whereas lithium can’t. While I would not recommend cycling lead acid to 100% DOD if you’re cycling them frequently, I have cycled mine to 100% DOD at least 150 cycles over 10 years and they’re holding up fine. I think lead acid can still be competitive in a float application like mine. Lithium is more cost effective for frequently cycled applications. Vmaxtanks batteries are more expensive than some of the other AGM brands, but I believe the long-term performance demonstrates that they are worth the money. If you’ve decided to go lead acid rather than lithium, in my opinion this is a great choice.

Did you find this helpful? 2 of 2 Found Helpful

Reviewed by: M Lewus from United States ???? on June 1, 2022 on 3/21/2023

Lasted five years as expected. Just ordered another one.

I bought this battery from Amazon in March 2017 and have been using it in a camping vehicle with a NOCO battery charger/maintainer while parked. This year I noticed that it is depleting quickly and will no longer last for a one-day camping trip (running a refrigerator and heater). After checking and discovering that I got a good five years out of the battery, I am pleased and just ordered an exact replacement today. I recommend. Lithium batteries are very nice, but to get double the storage (200 amp-hours) it will cost, literally, more than ten times as much to purchase the batteries and the required equipment. The installation labor will be more dollars still. AGM is just so much cheaper and simpler. Buy with confidence.

Did you find this helpful? 2 of 2 Found Helpful

Reviewed by: Bejennie from United States on June 16, 2022 on 3/21/2023

Solar Sailing!

I bought this as an alternative to a marine battery. It fits in a standard series 31 marine battery box. I installed it and hooked it up to an AGM charger and too it out the next day for an overnight meteor watching trip. I ran the anchor, cabin, and nav lights for several hours. We also ran the GPS overnight with an anchor alarm on. After a 12 hour trip it started the 15 HP motor vigorously and provided power all the way back to the dock. When it was hooked back on the charger I found it still had %20 capacity left. I am impressed with this and its ability to deliver a full 12V high amp current even at a low charge. I plan on purchasing another one soon to be able to do multi day trips without hitting shore. We had taken a spare old deep cycle hooked to the solar panels but did not need it at all. Did I mention its a local product? Arrived to Toledo, Oh. From Midland Mi, in less than 24 hours from the time I ordered. I didn't expect to have it for the trip and was much relieved when it got to me in time to be charged up overnight. It is a heavy sucker so be ready, I have the old deep cycle in the opposite side of the boat to balance her out. Update 1 year later: I just bought battery#2 to make into a dual battery system on my sailboat. We were out sailing with a 30w solar panel and an auto pilot for 7 days and had no issues and 50% battery on day 7 60% batt1 40% batt2. We did no conservation and rarely hit shore, preferring mooring buoys and privacy. I bought my second battery direct from the sellers warehouse, with a cash discount no less. If you are in the downriver detroit area give him a call or an email. He also threw in a few freebies for driving 60 miles that were much appreicated, I will be replacing these in a few years with the new 155AH version or more, but there are great for solar storage and I have no issues in a year of use. ALSO this battery retained 90% charge in storage over winter on my garage floor. Super tough battery, I will be adding in a new dual battery meter next week then maybe post pictures of the setup.

Did you find this helpful? 2 of 2 Found Helpful

Reviewed by: Swordwright the majic user from USA on 10/12/2022

Disapponting

So I bought a used 5th wheel with solar. I traded out the two batteries with Maxx Tank and upgraded the solar panel to 250 watts. The system seemed to work good in the bright sunshine in Seattle area before the trip but has really struggled in the grey, misty days in Alaska. The batteries seem to drop like a rock from a full charge even though we’ve turned off everything except the refer. I am VERY disappointed. These deep cycle batteries have NOT lived up to the hype of their ads. I would go back to Trojans in thee future.

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Reviewed by: Steve from Alaska on 7/1/2024

2699.9 points will be rewarded to you when you buy this item.

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SLR125 12Volts, 125AH Deep Cycle, Solar AGM Battery.

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