SLR125 12V 125Ah AGM Battery

SLR125 12V 125Ah 1.7kWh Deep Cycle Solar AGM Battery

10 Review(s) Write a Review

On sale: ~~$339.99~~ $259.99

VMAX SLR125 12 Volt 125ah Group 31 High Performance Solar AGM Deep Cycle Battery

Part Number: SLR125

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

Accessories

12V 15A 8 Stage Smart Battery Charger / Maintainer (+$99.99) 4 Pack of AA Rechargeable NiZn Batteries with Charger (+$5.99) 4 Pack of AAA Rechargeable NiZn Batteries with Charger (+$5.49)

Quantity	Price
2 - 3	$249.59
4 - 7	$246.99
8 - 11	$241.79
12 - 19	$236.59
20+	$233.99

Quantity

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

Select a row below to filter reviews.

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

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.