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Leoch LAGM-85 12V 85Ah Leisure AGM Battery – Deep Cycle Power
£132.00
£111.70
L:
26.00 cm
H:
21.00 cm
D:
17.00 cm
The Leoch LAGM‑85 is a rugged, maintenance‑free 12 V AGM deep‑cycle battery offering 85 Ah of reliable energy for caravans, motorhomes, marine vessels, and off‑grid solar setups.
Range Info:
Our Adventurer AGM has been designed with the leisure markets in mind. With deep cycling capabilities the adventure range can offer more than 600 cycles at 50% DoD, idea for marine vessels, motorhomes or caravans. Along with being created to be very safe with features such as vibration resistance, sealed for life and maintenance free.
Features and Benefits:
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12 V 85 Ah AGM technology – sealed, spill‑proof, and maintenance‑free
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Designed for deep cycling – ideal for semi‑regular discharge and recharge
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High vibration resistance – perfect for on‑road and marine environments
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Low self‑discharge – holds charge well during storage
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Long cycle life – up to 1200 cycles at 50% DoD
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Compatible with solar & inverters – supports off‑grid systems
Technology Low-Down
Absorbed Glass Mat (AGM) batteries are dry-cell, with the battery acid being encapsulated in fibreglass sheets. In comparison to flooded batteries, AGMs offer increased levels of reliability and versatility – with no free acid, they can be mounted in any orientation and are better able to handle vibration.
Product Specifications
| Voltage | 12v |
| Ah | 85Ah (C100), 63Ah (C20) |
| Weight | 18.00kg |
| Length | 260mm |
| Width | 170mm |
| Height | 210mm |
| Total Height | 225mm |
| Terminal Layout | Type 1 |
| Terminal Type | T6 / Post |
| Warranty | 1 Year |
FAQ Section
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Is the LAGM‑85 suitable for solar systems?
Yes – with an AGM-compatible MPPT charge controller and 14.4 V absorption voltage. -
What charger should I pair it with?
Use a 12 V smart charger (14.4–14.7 V absorption, 0.2–0.3 C float). -
Can I mount it on its side?
No – AGM batteries must stay upright for safety and warranty compliance.
Spec Sheet
Cost Per Cycle (Value Comparison)
If you cycle your leisure battery regularly, cost per cycle is a simple way to compare long-term value. The figures below use the typical cycle life ranges for each technology and the current prices shown above.
| Model | Price | Technology | Cycle Life | Cost / Cycle (Range) | Value Note |
|---|---|---|---|---|---|
| SFL-85 | £83.99 | Flooded Lead Acid | ~300–400 | £0.21–£0.28 | Lowest upfront cost |
| LAGM-85 | £111.70 | AGM | ~600–900 | £0.12–£0.19 | Strong all-round value |
| LDC12-90-G24-DT | £162.25 | Lead Carbon AGM | ~1300–1500 | £0.11–£0.12 | Best for frequent cycling |
Note: Cycle life varies by depth of discharge, charging profile, temperature, and usage. These figures are intended as a simple like-for-like comparison of typical cycle ranges.
Tip: If you regularly cycle your leisure battery (off-grid / solar / frequent weekends), the Lead Carbon option often works out cheaper over time despite the higher upfront cost.
12-Month Warranty.
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Reviews
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Delivery and Services
The battery also came with a smart charger and everything is fine. First battery measurements, good values. Battery lighter than conventional batteries. I recommend. Delivery faster than Amazon Prime. Goods safely packed in a box. I recommend buying a Smart charger. Do not charge with a classic charger !!!