XS Power S1200 12V AGM Battery, Max Amps 2,600A CA: 740A Ah: 55
We are a XS Power Authorized Dealer so you get up-to-date, fully warrantied products. Shipping is free to the lower 48 states on everything you order!
What's Inside?
- • XS Power Battery
- • 12V AGM Battery
- • Owner's Manual
12V AGM Starting Battery – 2,600A
Built for serious starting demands, the XS Power S1200 12V AGM Performance Battery combines sealed valve-regulated construction with high-current output of up to 2,600A. Its compact design and AGM technology make it a strong choice for performance vehicles and demanding electrical systems.
Frequently Asked Questions (FAQ)
- • Why is my S1200 showing only around 12.1V after sitting overnight?
An S1200 owner reported seeing just 12.1–12.2V at rest and was experiencing increasingly difficult starts after nearly three years of use. Other users in the same discussion suggested that the low resting voltage could indicate a discharged or deteriorating battery rather than normal S1200 behavior.
- • Can cold weather expose a battery that was already becoming weak?
Yes. The S1200 owner noticed starting problems as temperatures dropped, after the battery had already been resting at unusually low voltage. Another XS Power user in the discussion noted that resting voltage can fall in winter, making cold-weather starting a useful indicator when diagnosing battery condition.
- • Why did my S1200 gradually stop holding enough charge?
One documented S1200 owner found that the battery voltage continued falling while the vehicle was sitting, eventually reaching about 11.9V and causing concern about being stranded. This illustrates why a battery that repeatedly loses resting voltage should be tested for both battery condition and possible electrical drain.
- • Could an aftermarket audio system overwhelm a single S1200?
It depends on the complete electrical setup. A recent S1200 owner reported successfully running about 1,500W RMS with a 250A high-output alternator, suggesting the battery can work well in a properly supported system; substantially larger systems may require additional electrical upgrades.
- • Why might my battery test look bad even though the alternator is charging?
A charging alternator does not automatically prove the battery is healthy. In the S1200 troubleshooting case, the vehicle's charging behavior was being examined separately from the battery's low resting voltage, showing why both resting voltage and starting performance should be checked when diagnosing a weak battery.
- • Is the S1200 capable of lasting for many years?
Real owner experiences vary, but one verified S1200 customer reported replacing an earlier S1200 after 10 years, saying it had never left them stranded. That provides a useful counterpoint to shorter-lived batteries and shows how charging, vehicle use, and maintenance can affect service life.
- • Can using the wrong charger damage an S1200?
Yes. XS Power's S-Series guidance states that sustained charging above approximately 14.4V can cause the AGM battery to gas, permanently reduce capacity, and shorten service life. One forum user specifically warned that a charger reaching about 15.5V was too aggressive for XS Power batteries.
- • Why might my S1200 need an external charger even though I drive the vehicle regularly?
Short trips, extended accessory use, or an electrical draw while parked can leave an AGM battery below a full state of charge. In the S1200 troubleshooting discussion, the owner had not charged the battery since September and was later dealing with very low resting voltage, showing why charging history matters when diagnosing performance problems.
- • Could the S1200 be a good match for a vehicle with upgraded electrical equipment?
A real-world S1200 owner reported using the 55Ah battery with a 250A high-output alternator and approximately 1,500W RMS of audio power without problems. This suggests the S1200 can be effective when its capacity and the vehicle's charging output are appropriately matched to the electrical load.
- • What should I investigate before blaming a failing S1200?
Do not automatically assume the battery is the only problem. The S1200 troubleshooting case involved checking starting behavior, resting voltage, charging voltage, temperature effects, and possible electrical drain; a battery that repeatedly falls below normal resting voltage deserves a complete electrical-system diagnosis.
Features:
- Length: 7.79 in
- Height: 6.69 in
- Width: 6.54 in
- MAX Amps: 2600
- CA: 740A
- Ah: 55
- RC: 95min.
- 586 and M6 Terminal Hardware Included
- UPC: 692209013150
- Weight: 35
- Authorized Internet Dealer
Warranty: 2 Year(s) Warranty.
This item is accompanied by a manufacturer's warranty. If it is found to be defective, it may be returned to OnlineCarstereo.com for replacement within 2 Year(s) from the original date of purchase with proper return authorization.