How is an AGM battery different than a conventional battery?

An AGM battery uses a fiberglass mat to absorb the electrolyte that’s essential for energy storage and delivery. A conventional “flooded” battery contains a liquid electrolyte. The AGM design makes the battery spill-proof and maintenance-free.

What are the benefits of an AGM battery?

An AGM battery’s maintenance-free design makes it spill-proof and resistant to vibrations. It also offers up to twice the life of conventional flooded batteries, along with more power and Cold Cranking Amps than conventional flooded batteries.

Do I have to replace an AGM battery with another?

Yes. If the original-equipment battery was an AGM battery, it’s important to replace it with another. That also goes for “aux” batteries in vehicles with Start/Stop technology and other features with unique electrical demands.

What is an “aux” battery?

Some vehicles use an auxiliary battery as a part of a more complex electrical system with increased demands. Typically, these “aux” batteries are used in vehicles with Start/Stop technology as well as hybrid vehicles and battery-electric vehicles.

Can I use an AGM battery in a vehicle that did not originally come with one?

In most cases, the answer is yes. Most modern vehicles can accommodate an AGM battery as a direct replacement. Some vehicles, however, may have compatibility issues when it comes to the charging and voltage needs for an AGM battery.

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Rain smaller Adapter TT288

Product ID: 437838600

Details

Battery cell composition
Brand
ACDelco
Item weight
45.5 Pounds
Number of cells
6
Product dimensions
19.1D x 30.2W
Resistance
15.79

🔋70 Amps high cranking power

❄️Reliable performance in extreme temps

🛡️36-month free replacement warranty

Description

🔋 Power your drive with confidence — the battery that outlasts the rest!

EXTREME CLIMATE READY - Proven durability from scorching summers to freezing winters, perfect for demanding environments.
ADVANCED AGM TECHNOLOGY - Spill-proof Absorbed Glass Mat design guarantees maintenance-free, leak-resistant operation.
POWER THROUGH EVERY START - Delivers a robust 70 Amps for reliable ignition, even in harsh conditions.
COOL EFFICIENT PERFORMANCE - Enhanced acid circulation and puncture-resistant separator keep the battery cool and extend lifespan.
BUILT TO LAST BACKED TO TRUST - 36-month free replacement warranty ensures peace of mind and long-term value.

The Rain smaller Adapter TT288 is a premium AGM automotive battery delivering 70 Amps of cranking power with advanced Absorbed Glass Mat technology for spill-proof, maintenance-free use. Engineered with high-density negative paste, silver calcium alloy grids, and a robust separator, it maximizes conductivity, acid circulation, and cycle life. Backed by a 36-month free replacement warranty, it excels in extreme temperatures and heavy-duty applications, making it the go-to choice for professionals demanding reliability and longevity.

Specifications

ASIN	B008FWCLHU
Battery Type	Silver-Calcium
Brand Name	ACDelco
Compatible with Vehicle Type	Truck
Customer Reviews	4.5 4.5 out of 5 stars (2,112)
Item Dimensions D x W x H	19.1D x 30.2W x 19.3H centimetres
Item Type Name	lead_acid_battery
Item Weight	45.5 Pounds
Manufacturer	ACDelco
Manufacturer Part Number	88864541
Manufacturer Warranty Description	36 Month Free Replacement / Limited Warranty
Model Number	48AGM
Number Of Cells	6
OEM Equivalent Part Number	88864541
Part Interchange Info	48AGM
Resistance	15.79 Milliohms
Size	Standard
Terminal	Marine Terminal
UPC	707773904015
Voltage	12 Volts

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