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3 reviews

TN Power 125Ah AGM Deep Cycle Leisure Battery – 12V

3 reviews

The TN Power 125Ah AGM Deep Cycle 12V Leisure Battery offers impressive performance at an affordable price. Our research and testing shows that TN Power batteries offer the best value vs performance, and are subsequently our battery of choice for most applications.

  • 125Ah capacity
  • Suitable for 12V systems
  • Ideal for regular, long term use
  • 600 cycles at 80% DoD


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TN Power 12V 125Ah Deep Cycle AGM Leisure Battery – TNE12-125

Our research and testing show that TN Power batteries offer the best value vs performance, and are subsequently our battery of choice for most applications. They are especially designed for deep cycle applications and have an impressive cycle life of 600 cycles at 80% DOD.

TN Power AGM batteries are perfect for off-grid applications where deep discharging is required, but weight and size are not an issue, or budget is more limited. They are a maintenance-free VRLA battery, so there’s no need to add water or acid during application.

The TN Power 125Ah AGM battery weighs 32.5kg and has M8 threaded connection posts.

Lifespan of TN Power AGM deep cycle leisure batteries

  • 80% DoD – 600 cycles
  • 70% DoD – 700 cycles
  • 50% DoD – 1100 cycles

This means that an AGM leisure battery specced to provide 3 full days of power based on your daily power usage, when used every day (i.e. in full-time usage applications) will have a lifespan of around 3-4 years. In this setting, we would recommend that in this instance, you only regularly discharge your battery by up to 65%.

When used in part-time applications, such as in a campervan used for holidays, it will have a lifespan of around 8-10 years. For comparison, a lithium leisure battery of the same specification with full-time usage will have a lifespan of 15-20 years.

AGM leisure batteries – use cases

AGM leisure batteries can be regularly deeply discharged by up to 80% of their total capacity. This means that a large portion of the battery’s capacity can be accessed. The lower price point of AGM batteries, along with the fact that they are maintenance-free, makes them perfect for many off-grid applications.

For full-time applications where the battery will be in use every day, and where weight and space are important factors, it can be a good idea to consider lithium batteries.

Operating conditions

  • Discharge: -15°C to +50°C
  • Charge: 0°C to +40°C

Looking for other leisure batteries?

View our full range of AGM leisure batteries from Victron and TN Power.

Products that give back

We are members of 1% for the Planet. This means that for every product purchased from Climbingvan, 1% of the total cost will be given to The Honnold Foundation, to provide solar power to underprivileged communities. If you want your electrical system to have more of a positive impact, purchasing your components from us at Climbingvan will mean you can give back as well as powering your off-grid system.

Product SKU: TNE12-125

Additional information

Weight 32.5 kg
Dimensions 33 × 17.1 × 21.4 cm




Discharge temperature

-15°C to +50°C

Charge temperature

0°C to +40°C

Terminal type



2 Years


TN Power

Manufacturer Part Number


Battery type

3 reviews for TN Power 125Ah AGM Deep Cycle Leisure Battery – 12V

  1. Michael Bloomfield (verified owner)

    Hi it was the quickest delivery I’ve ever had in a lifetime, however the Batterys are not getting fitted to the end of the month, but I’ll leave a comment when they are fitted

  2. Mike G. (verified owner)

    Item in stock and quick delivery. What more can you ask for. 👍

  3. TERRY (verified owner)

    Great website and the advisor I spoke to was very helpful and the only person in a month plus of trying, with other companies regarding lithium batteries, who seemed to know what he was talking about and could answer my many questions. Thanks Adam!

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