Shop by Category
comment Live Chat

UPG UB121000 12V 100Ah Group 27 AGM Battery

UPG UB121000 12V 100Ah Group 27 AGM Battery

Short Description
Nominal Voltage 12 volts
Nominal Capacity 77º F (25º C)
20-hr. (5.00A) 100.0AH
10-hr. (9.30A) 93.0AH
5-hr. (17.0A) 85.0AH
1-hr. (60.0A) 60.0AH
Approximate Weight 55.0lbs (24.9 kgs)
Internal Resistance (approx.) 5mΩ


Checkout Securely With:

  • PayPal
  • PayTomorrow
  • Discover
  • American Express
  • Master Card
  • Visa

Shelf Life (% of normal capacity at 68º F (20º C))

3 Months 6 Months 12 Months
91% 83% 64%

Temperature Dependency of Capacity (20-hour rate)

104°F(40 C) 77°F(25 C) 32°F (0 C) 5°F (-15 C)
102% 100% 85% 65%

AGM Operational Temperature

Charge 32°F to 104°F (0°C to 40°C)
Discharge 5°F to 113°F (-15°C to 45°C)
AGM Storage Temperature 5°F to 104°F (-15°C to 40°C)

Charge Method (Constant Voltage)

Cycle Use (Repeating Use)

Initial Current 30.0A or smaller
Control Voltage 14.6-14.8 V

Float Use

Control Voltage 13.6-13.8 V


Cura360 Return Policy

Most products featured on can be returned within 30 days of purchase depending upon the manufacturer’s return policy.

For specific return information or authorization, please contact Cura360's Customer Service Department at or call 833-207-3433 for authorization. Returns cannot be processed without contacting Cura360 first, and some items are non-returnable when opened due to health risks.

Generally, you can expect a credit or refund, less a restocking and handling fee, in the same form of payment originally used for your purchase. Credits will be issued within 30 days of the manufacturer receiving your returned product back complete and in good, unused condition in original packaging, and them issuing Cura360 an approval. You will be refunded the purchase price, less the Restocking Fee & applicable shipping fees. You are responsible for the return label and shipping costs. 

·       Restocking Fees range based on the Manufacturers policies, typically between 20-30%

·       All returns MUST be pre-approved by Cura360

·       If a return is not received by the carrier within 15 days after the request has been approved, we will consider the item as not returned and a refund will not be processed

·       Shipping costs are not reimbursable

·       Returns due to damage or defect must be reported as soon as possible and pictures may be required


IMPORTANT If there is significant visible damage to the packaging upon receipt, request that the driver note the damage and request a claim be filed with the carrier for damage. You should also immediately contact Cura360 Customer Service at or call 833-207-3433

*UPG guarantees its batteries against leaks and defects in materials and workmanship for 1 year. Customer must provide proof of purchase as proof of claim. 

Guarantee is void if batteries are opened, crushed, exposed to fire or high temperatures, installed backwards, used with old batteries or other battery types, recharged, or used in device designed for other battery type or chemistry. UPG may deny claims of damage caused by misuse or modification of the batteries. Please visit for more information.