Test My Batteries: Northstar SMS 220 AGM (Brass SAE Post, Part: SMS-AGM-220)
Welcome to TestMyBatteries.com video, featuring Northstar's SMS 220 AGM. We will conduct our standard procedure test which consists of 2 Inductance readings (both are calculated values based on room temp (garage heated to 60 degree F) and temperature of rating (CCA = 0F, CA=32F). Finally we follow up with a video of the load tests, from 1C and 3C continuous draw to a final peak power draw (for wattage). Below is a breakdown of product and results.
Product size: SMS220 (Specialty)
Product Capacity: 107AH (c/20hr) Said & used 100ah for testing in video
Terminal Type: Screw in M8, Brass SAE Post was used for testing
Product Manufacturer: Northstar
Product Part Number: SMS-AGM-220
Tests
Inductance Test (CCA) : 916 CCA
Inductance Test (CA) : 1269 CA
Inductance tests were done on a GR-8 by Midtronics
Load Test
1C = 100 Amps (1 x Capacity) = 11.85v avg. under load
3C= 300 Amps (3 x Capacity) = 10.6v avg. under load
Peak Power (W) = 430 Amps @10v = 4300w
Peak Power (W) = 639 Amps @ 9.04v = ~5764w