BatteryChat Editorial Team | Last Updated: October 2026
Choosing the right trolling motor battery is critical — run out of power mid-lake and you’re paddling home. We’ve reviewed the top options for 2026 across lithium and AGM categories to give you a definitive list with real specs and prices.
Top Trolling Motor Batteries: Quick Comparison
| Battery | Type | Voltage | Capacity | Weight | Price | Best For |
|---|---|---|---|---|---|---|
| Dakota Lithium 100Ah | LiFePO4 Lithium | 12V | 100Ah | 26 lbs | ~$500 | Weight-conscious, long runs |
| Ampere Time (LiTime) 100Ah | LiFePO4 Lithium | 12V | 100Ah | 24 lbs | ~$300 | Best value lithium |
| Optima BlueTop D31M | AGM Dual-Purpose | 12V | 75Ah | 59.8 lbs | ~$280 | Starting + trolling, dual use |
| VMAXTANKS SLR125 | AGM Deep Cycle | 12V | 125Ah | 75 lbs | ~$250 | Maximum runtime on a budget |
Best Value Lithium: Ampere Time (LiTime) 12V 100Ah
For a lithium option on a budget, the Ampere Time 12V 100Ah LiFePO4 (now branded LiTime) offers 100Ah of rated capacity. It weighs only 24 lbs and supports 2,000+ charge cycles. The built-in BMS protects against overcharge, over-discharge, and short circuit.
- Capacity: 100Ah
- Weight: 24 lbs
- Lifespan: 2,000+ cycles
- Warranty: 5 years
- Price: ~$300
Best Budget Option: VMAXTANKS SLR125 AGM
The VMAXTANKS VMAXSLR125 is the go-to AGM option for anglers who want maximum runtime at a budget price. At 125Ah, it offers more capacity than many pricier competitors. At 50% depth of discharge (recommended for AGM batteries), you get 62.5Ah of usable power — enough for a full day of moderate trolling.
- Capacity: 125Ah (62.5Ah usable at 50% DoD)
- Weight: 75 lbs
- Type: AGM deep cycle
- Price: ~$250
Best Dual-Purpose: Optima BlueTop D31M
The Optima BlueTop D31M is uniquely designed to handle both engine starting and deep-cycle trolling duties. Its spiral-cell AGM design provides superior vibration resistance (important on rough water), and it recharges faster than flat-plate AGM batteries. The D31M delivers 900 CCA for reliable engine starts.
- Capacity: 75Ah
- CCA: 900 (starting power)
- Weight: 59.8 lbs
- Price: ~$280
- Best for: Boats needing both starting and trolling battery in one
Buyer’s Guide: How to Choose a Trolling Motor Battery
For a boat with both starting and house loads, compare the boat battery picks and review the series-versus-parallel guide before planning a multi-battery bank.
What voltage do I need?
Most trolling motors run on 12V, 24V, or 36V. Check your motor’s label. For 24V, wire two 12V batteries in series. For 36V, wire three 12V batteries in series.
How many amp-hours (Ah) do I need?
Multiply your motor’s average amp draw by your target runtime. A 55 lb-thrust motor draws roughly 25–40 amps at moderate speed. For a 4-hour day at average draw (~25A), you need 100Ah. For a full 8-hour day, go 150Ah AGM or 100Ah lithium (which provides 100% usable capacity).
Lithium vs. AGM for trolling motors?
Lithium (LiFePO4) wins on weight, lifespan, and usable capacity but costs 2–3× more upfront. AGM is heavier and has lower usable capacity but is far more affordable. If you fish 20+ times per year, lithium pays off within 2–3 seasons. Occasional anglers are better served by quality AGM.
Frequently Asked Questions
Can I use a car battery for a trolling motor?
No. Car batteries are starting batteries designed for short, high-current bursts to start an engine. Trolling motors need deep-cycle batteries rated for sustained discharge. Using a car battery will damage it prematurely and leave you stranded on the water.
How long does a trolling motor battery last?
Quality AGM batteries last 3–5 years with proper care. Lithium LiFePO4 batteries last 8–15 years. Always recharge after each use and store at 50–80% charge during the off-season.
Can I run two batteries in parallel for more runtime?
Yes. Wiring two identical 12V deep-cycle batteries in parallel doubles your Ah capacity without changing voltage. Use batteries of the same age, type, and capacity to avoid one battery draining the other.
What’s the best battery for a Minn Kota or MotorGuide trolling motor?
Both Minn Kota and MotorGuide recommend deep-cycle marine batteries. For most 12V motors up to 55 lbs thrust: VMAXTANKS SLR125 (budget). For 24V or 36V motors, use matched pairs or triples of the same battery.
