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12V 20Ah Trolling Motor Lithium Iron Phosphate Battery

SKU: RBT1220LFP-TM-UK
£79.99 £99.99
Tax included. Free shipping.
+ 790   Renogy Rays after purchase.
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  • A 50% lighter drop in replacement for 20Ah lead-acid batteries
  • 37% longer runtime for fish finders, scooters, ham radios, and more
  • 20+ Built-in BMS protection with low-temp cut-off for added safety
  • Save 60% of power over 3 months than the lead-acid batteries
  • IP65 water & dust resistance for harsh outdoor environments
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Description
Includes
Specs
Downloads
FAQ
Reviews

Take a Closer Look

Navigate Inland & Coastal Waters Confidently

At only half the weight of a lead-acid counterpart, the Renogy 12V 20Ah TM Series LiFePO4 Battery is built strong to tackle splashes, dust, and corrosion so you can stay on the water with peace of mind.

Power to Roam Further

Delivers 30% more usable capacity on a single charge than traditional lead-acid batteries, so daily errands, park visits, or spontaneous adventures never get cut short.

Stay on Air with Portable Lithium Power

Renogy 12V 20Ah LiFePO4 battery powers mobile ham radio setups with 8 times longer lifespan than lead acid batteries—no more dead batteries during POTA activations.

Sizing Guide

Before installing the battery, please note that you need to leave 1.97-3.94 in (50-100 mm) for the top of the battery; the side with busbars needs to be left at least 7.87 in (200 mm).

Package Includes

RENOGY 12.8V 20Ah Deep Cycle Lithium Iron Phosphate Battery

x 1

Terminal Bolt (M6*1.25*10 mm)

x 2

User Manual

x 1

Temperature Parameters

Operation Temperature Range
Charge: 32°F to 131°F (0°C to 55°C); Discharge: -4°F to 140°F (-20°C to 60°C)
Storage Temperature Range
-4°F to 140°F (-20°C to 60°C)
Operation Relative Humidity
10% to 95%

Charging Parameters

Voltage Range
10V to 14.8V
Maximum Continuous Charge Current
20A

Electrical Specifications

Rated Capacity
20Ah (0.5C, 25℃)
Voltage
12V
Energy
256Wh
Cycle Life (0.5C, 25℃)
4000 Cycles (80% DOD)

Discharging Parameters

Maximum Continuous Discharge Current
20A
Peak Discharge Current
75A@5s

Warranty

5-year material warranty
Yes

Certifications

MSDS, UN38.3, FCC, CE, PSE, RCM, IC, RoHS, and UKCA
Yes
Shop By Scenario
Trolling Motor

Mechanical Specifications

Dimension (L x W x H)
7.13 x 3.03 x 6.61 in / 181 x 77 x 168 mm
Weight
5.95 lbs / 2.7 kg
Terminal Bolt Size
M6 x 1.25 x 10 mm
Protection Rating
IP65

Resources Download

Manual

Download

Warranty

Download

Frequently Asked Questions

Can I replace my old lead-acid battery with the Renogy 12.8V 20Ah battery?

In most cases, yes. You can replace your lead-acid battery with the Renogy 12V 20Ah battery. However, it's important to verify compatibility with your specific device (like the charger) or system before making the switch.

Does this battery have BMS protection?

Yes. it has a built-in battery management system (BMS) that includes protection features such as overcharge, over-discharge, over-current, and short-circuit protection, and supports automatic disconnection at low / high temperatures to ensure safety and durability.

How many Renogy 12.8V 20Ah Deep Cycle Lithium Iron Phosphate Batteries can I connect at most?

You can connect up to 16 batteries in series and parallel to expand power to 4.096kWh. Batteries of the same model and similar capacity are required.

Can I pair a Bluetooth Module for this battery to monitor the battery status on the phone?

No. This battery does not have a Bluetooth port for a Bluetooth Module. However, you can connect your battery with a Renogy 300A Battery Shunt (sold separately), which can send the data to the Renogy app via Bluetooth so you can keep track of battery status in real time.

How long does it take to charge?

It is recommended to use a dedicated charger for lithium batteres. The charging time varies with the charging current. If you use a 10A charger, it will take approximately 2 hours to fully charge this 12V 20Ah LiFePO4 battery.

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