Lower price range
Mighty Max ML35-12 12V 35Ah U1 Deep Cycle AGM Battery
Best for: Powering a fish finder, aerator, or small kayak setup on a budget.
$50-150
Universal Power Group · Marine Batteries
Universal Power Group UB121000 12V 100Ah AGM SLA Deep Cycle Battery
Long-standing and widely stocked. The main tradeoff is heavy at more than 60 lb.
Best for: A dependable all-purpose AGM for trolling motors, solar, and marine accessories.
$150-300 · check the retailer for current price and availability
Decision notes
What it does well and what to watch for.
Start with how you plan to use it, then weigh these strengths and tradeoffs against your own setup.
Why it works
- Long-standing and widely stocked
- Vibration and shock resistant
- UL-recognized cells
Watch for
- Heavy at more than 60 lb
- Button terminals may need adapters for some trolling motor leads
Key details
Specifications at a glance.
- Price band
- $150-300
- Authority Score
- 8.0 / 10
- Chemistry
- AGM VRLA lead-acid
- Capacity
- 100Ah
- Group size
- 27
- Terminals
- Threaded button
- Weight
- About 63 lb
Sources and checks
Sources for Universal Power Group UB121000 12V 100Ah AGM SLA Deep Cycle Battery.
Record reviewed . Retailers confirm the exact seller, configuration, price, and availability.
These sources support the model identity and buying notes on this page. Shopping links are never treated as evidence.
Other budgets
See what changes if you spend less or more.
Closest price range
LiTime 12V 100Ah Group 31 LiFePO4 Lithium Battery
Best for: Anglers wanting the lowest-cost lithium upgrade for trolling motors and electronics.
$150-300
Higher price range
ExpertPower 12V 100Ah LiFePO4 Deep Cycle Battery with Bluetooth
Best for: Boaters who want app-based battery monitoring in a mid-priced lithium.
$300-600
Complete the field system
Finish the setup around this choice.
Small-boat fishing system. Each piece handles a different job and comes from near the middle of its gear type's researched price range.
Trolling Motors
MotorGuide Xi3 Wireless Freshwater 55lb 48-inch with Pinpoint GPS
Why it belongs: Controls boat speed and position around wind, current, and structure.
Best for: Freshwater boaters who need a 48 inch shaft and want wireless Pinpoint GPS positioning from a single 12 volt battery.
$600-1000
Fish Finders
Garmin ECHOMAP UHD2 74sv
Why it belongs: Adds depth, structure, mapping, and sonar context to the water being covered.
Best for: The serious walleye or bass angler building toward live sonar who wants Garmin mapping now.
$600-1000
Tackle Boxes & Bags
KastKing BaitSpace 50L Fishing Tackle Backpack
Why it belongs: Keeps active presentations organized without taking over limited deck space.
Best for: Anglers who hike or shore-fish and need to carry a large, self-contained tackle load hands-free.
$50-150
Product FAQ
Questions before you buy.
Who is the Universal Power Group UB121000 12V 100Ah AGM SLA Deep Cycle Battery best for?
Best fit for the Universal Power Group UB121000 12V 100Ah AGM SLA Deep Cycle Battery: A dependable all-purpose AGM for trolling motors, solar, and marine accessories. Check the exact model against your own equipment, conditions, and experience before ordering.
What stands out about the Universal Power Group UB121000 12V 100Ah AGM SLA Deep Cycle Battery?
Long-standing and widely stocked. The main tradeoff for the Universal Power Group UB121000 12V 100Ah AGM SLA Deep Cycle Battery is Heavy at more than 60 lb.
What should I confirm before buying the Universal Power Group UB121000 12V 100Ah AGM SLA Deep Cycle Battery?
For the Universal Power Group UB121000 12V 100Ah AGM SLA Deep Cycle Battery, check chemistry (AGM VRLA lead-acid), capacity (100Ah), and group size (27) against your setup and the current listing. Also confirm the exact model and included parts. The main tradeoff to weigh is Heavy at more than 60 lb.
Where can I check the current price for the Universal Power Group UB121000 12V 100Ah AGM SLA Deep Cycle Battery?
Use the retailer button on this Universal Power Group UB121000 12V 100Ah AGM SLA Deep Cycle Battery page to open the current listing. Before checkout, verify the seller, exact configuration, included parts, shipping, return terms, and current price because those details can change.