Fullriver DC145-12 — Deep Cycle AGM Battery, 12V 145Ah
True deep-cycle AGM for house banks on boats, second batteries in 4x4s and campers, off-grid homes and solar systems. Thicker plates and more lead than standard AGM for maximum reserve capacity and cycle life. 12V · 145Ah (C20) · 43.8 kg · Group 31 · maintenance-free.
- Genuine Fullriver, in stock at our Trang warehouse
- Bench-tested before dispatch
- Manufacturer’s warranty — we handle claims for you here in Thailand
- 30-day returns on unused items — how returns work
Delivery & shipping
- Free local delivery — Trang · Krabi · Phuket
- Thailand-wide courier, typically 1–3 days
- Worldwide shipping by courier & sea freight
- Non-spillable sealed battery — classified non-hazardous (49 CFR 173.159(d), IATA A67/A48), air-transportable worldwide with no dangerous-goods surcharge.
Fair price check
Our price is the manufacturer's home-market RRP — what this gear sells for where it's made. Branded marine equipment in Thailand typically retails 15–90% above that, when prices are published at all. Ours doesn't.
About this product
The Fullriver DC145-12 is a Group 31, 145 Ah deep-cycle AGM built for house banks, solar storage and trolling duty. Thick plates and more lead than a standard AGM give it the reserve capacity and cycle life that overnight loads demand, and Fullriver rates it for 80 % usable depth of discharge — so more of the amp-hours on the label are amp-hours you can actually use. Sealed, non-spillable and vibration-resistant, it needs no maintenance and can be shipped by air, sea and road as non-hazardous goods.
Where it fits
A tall Group 31 case (341 × 173 mm footprint, 287 mm to the top of the terminals) that drops into most Group 31 battery trays and boxes while carrying noticeably more capacity than a standard 31. Two or three in parallel make a 290–435 Ah house bank for a cruising yacht's refrigeration, lighting and electronics; on its own it suits a day boat, a solar shed or an inverter backup. It also has real cranking reserve (820 CCA) if it ever has to double as an emergency start battery.
Specifications
| Model | DC145-12 |
|---|---|
| Voltage | 12 V |
| Capacity @ 20 hr rate | 145 Ah |
| Capacity @ 100 hr rate | 160 Ah |
| Capacity @ 5 hr rate | 118 Ah |
| Reserve capacity @ 25 A | 279 minutes |
| Cold cranking amps (CCA) | 820 |
| CA / MCA | 975 |
| Case dimensions (L × W × H) | 341 × 173 × 263 mm |
| Height to top of terminals | 287 mm |
| Weight | 43.8 kg |
| BCI group | 31 |
| Terminals | M8 |
| Construction | Sealed AGM, valve-regulated, non-spillable, ABS case |
Figures are from Fullriver's published specification. Fullriver DC145-12 datasheet.
Installation and charging
Mount upright or on its side (never inverted), strapped or held down — no battery box is required for a sealed AGM. Charge with an AGM profile: bulk/absorption 14.4–14.7 V and float 13.6–13.7 V at 25 °C, with temperature compensation in a hot engine room. Recommended charge current is 20–25 % of the Ah rating, so give this battery a charger that can deliver 30 A or more — or 60 A+ for a pair. Not sure what bank size or charger you need? Use our battery bank & cable size calculator or message us on LINE or WhatsApp.
Delivery in Thailand
Free delivery in Trang, Krabi and Phuket; nationwide courier in 1–3 days. Collection from our Trang warehouse is welcome.
Building a house bank with the DC145-12
Two DC145-12 in series give 24 V 145 Ah; two of those pairs in parallel give 24 V 290 Ah (7.0 kWh stored, about 5.6 kWh usable within Fullriver's 80% limit). Four in parallel give 12 V 580 Ah. Keep every cable in a parallel set the same length, fuse the bank at the battery, fit the temperature sensor to a middle battery, and replace a bank as a set rather than one battery at a time.
Charging a 24 V bank of four: bulk current of about 58 A, so the Kisae Abso AC2450 50 A 24 V charger from a generator or the mains, or a 24 V solar controller sized to your panels. Size the bank and the cable, or send us what you run on LINE and an engineer will check it.
As a second battery in a 4x4, pickup or camper
Fitted in the canopy or under a seat, the DC145-12 gives 116 Ah of usable energy at Fullriver's 80% depth of discharge: enough for a 35–45 L compressor fridge, LED lights and phone charging for about two nights without starting the engine. It is sealed, so it can be mounted on its side, and it shrugs off corrugations.
Charge it from the vehicle with a DC-DC charger rather than a split-charge relay, so a smart alternator and a long cable run still deliver a full AGM charge: for this battery the KISAE Abso DMT1230 (30 A), or the KISAE Abso DMT1250 (50 A) for a shorter drive to refill it. Every KISAE charger comes with a free temperature sensor and its page carries the manufacturer's cable and fuse table. Add a battery monitor and you can see the state of charge instead of guessing.
On a longer trip the battery is topped up as you go: an hour's driving on a 30 A DC-DC charger returns about 27 Ah, and 200 W of solar on the roof about 50 Ah a day in Thai sun, so a fridge, lights and phones (about 40–50 Ah a day) keep going for a week or more.
Read dual-battery systems explained, or use the Drake SVO sizing calculator and send the result to an engineer on LINE to check, free.
Questions
Do I need a DC-DC charger, or will a relay do?
Many modern vehicles have smart alternators that lower the voltage once the starting battery is full, so a relay leaves an AGM battery part-charged. A DC-DC charger gives it the full AGM profile Fullriver specify (14.7 V absorption, 13.7 V float); the dual-battery guide explains why.
Can it be mounted on its side?
Yes. It is sealed and non-spillable, so it can be mounted upright or on its side, which gives you more options in a canopy, under a seat or in a locker.
How do I look after it in the heat?
Mount it shaded with some airflow, and charge it with temperature compensation: Fullriver specify −4 mV/°C per cell, and the battery temperature sensor that does this comes free with every compatible KISAE charger.
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