Epoch Batteries 12V 50Ah Essential Series LiFePO4 Battery
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Original price
$299.00
-Original price
$299.00
Original price
$299.00
$299.00-$299.00
Current price
$299.00
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Epoch 12V 50Ah Essential Series LiFePO4 Battery (640Wh)
14.3 pounds and 640Wh — the small Epoch, for the jobs that don't need a house bank. A kayak fish finder, a small trolling motor, a camper's lighting and USB charging, a ham radio setup, a mobility scooter, or one battery of a 36V trolling motor bank built from three of these.
It's still a proper LFP battery: 4,000+ cycles, a full BMS with over-charge, over-discharge, over-current, short-circuit and temperature protection, Bluetooth monitoring through the Epoch Pro app, and Epoch's 11-year warranty. Note that this model is not self-heated, so charging needs to be above freezing. Renewable Outdoors is an authorized Epoch dealer — call us at (303) 876-7654 if you'd like help deciding on capacity.
11-Year Warranty
Lowest Price Guarantee
Authorized Epoch Dealer
Free Shipping
0% APR Financing
Expert Support: (303) 876-7654
Why the Essential Series 50Ah
14.3 lbs
Light enough to carry in one hand into a kayak, a blind or a camper — a comparable lead-acid battery is nearly three times heavier.
640Wh of LFP
50Ah at 12.8V, with essentially all of it usable rather than the half you get from lead-acid.
4,000+ Cycles
Behind an 11-year limited warranty — for occasional use, effectively the life of the equipment.
Bluetooth with Multi-Battery View
The Epoch app manages a whole bank from one screen, which matters if you build a 36V setup from three of these.
Full BMS Protection
Over-charge, over-discharge, over-current, short-circuit protection and high and low temperature disconnects.
4S4P Configurable
Up to four in series for 48V, or four in parallel for 200Ah at 12V.
What's Included
What You Get
1 × Epoch 12V 50Ah Essential Series LiFePO4 battery
Documentation and warranty paperwork
This model does not have internal heating — charging requires 32°F or above. Discharge is fine down to −4°F. A lithium-profile charger and cables are separate; Epoch's 12V 15A charger is the natural match for this size. Call us at (303) 876-7654 if you're building a multi-battery bank.
Epoch 12V 50Ah Essential Series Specifications
Cell Chemistry
LiFePO4 (lithium iron phosphate)
Cell Configuration
4S
Rated Capacity
50Ah — 640Wh (0.64kWh)
Nominal Voltage
12.8V
Maximum Charge Voltage
14.6V
Operating Voltage Range
10.0–14.6V
Maximum Continuous Discharge
50A
Maximum Continuous Charge
50A (recommended 25A)
Peak Discharge
170A for 3 seconds
Series Configuration
Up to 4 in series (48V nominal)
Parallel Configuration
Up to 4 in parallel — 200Ah, 2.56kWh; max configuration 4S4P
Cycle Life
4,000+ cycles
Charging Temperature
32°F to 131°F (0°C to 55°C) — no internal heating on this model
Discharging Temperature
−4°F to 140°F (−20°C to 60°C)
Storage Temperature
32°F to 95°F (0°C to 35°C), max 12 months
Ingress Protection
IP54 — dust-protected, splash-resistant; not for submersion
Communications
Bluetooth with the Epoch Pro app for iOS and Android
BMS Protection
Overcharge, over-discharge, over-current, short circuit, high and low temperature disconnects
Dimensions
7.7" × 6.5" × 6.9"
Weight
14.3 lbs (6.5 kg)
SKU
1250A-ES
Warranty
11-year limited warranty
11-Year Warranty
Every Essential Series 50Ah carries Epoch's 11-year limited manufacturer warranty.
Lowest Price Guarantee
Found it cheaper elsewhere? Call us at (303) 876-7654 before you buy.
Authorized Epoch Dealer
Genuine Epoch hardware with full manufacturer support behind it.
A fish finder for several days. A 30W LED light strip for twenty hours. A small 12V fan overnight and then some. A kayak trolling motor at low throttle for an hour or two. Phone and tablet charging for a week. It's a device-and-accessory battery rather than a house bank — if you want to run a fridge or an inverter, look at the 100Ah Eco or the 300Ah Essential.
Can I build a 36V trolling motor bank from three of these?
Yes — up to four in series is supported, so three in series gives you 38.4V nominal for a 36V motor. The Epoch app will show all three on one screen, which is genuinely useful for spotting a lagging battery. That said, Epoch's purpose-built 36V 50Ah battery does the same job in one case with internal heating, and is usually the tidier answer. Call us and we'll compare the two.
Why doesn't this one have heating when the bigger Essentials do?
It's a size and cost decision on Epoch's part. The practical consequence is that this battery needs to be above 32°F to accept a charge, though it will happily discharge down to −4°F. If it lives somewhere that freezes and you need to charge it there, one of the heated models is the right choice.
Is it safe in a kayak or a small boat?
LFP is the safest common lithium chemistry and the BMS protects against the failure modes that matter. The rating to watch is IP54 — splash-resistant, not submersible. In a kayak, keep it in a dry bag or a sealed hatch rather than exposed in the footwell.
How does it compare with a lead-acid battery of the same size?
A 50Ah lead-acid battery gives you about 25Ah of usable capacity before you start damaging it; this gives you close to 50Ah. It weighs 14.3 lbs against roughly 35 lbs. And it lasts 4,000 cycles against perhaps 300. The purchase price is higher and the cost per useful cycle is far lower.
Why lithium iron phosphate rather than lead-acid?
Three reasons that matter in practice. You can use nearly all of the rated capacity rather than half, so a 100Ah LFP battery does the work of a 200Ah lead-acid one. It weighs roughly a third as much for the same usable energy. And it lasts thousands of cycles instead of a few hundred, so cost per cycle is dramatically lower despite the higher purchase price.
Do I need a lithium-specific charger?
Yes. A lead-acid charger's absorption and float voltages are wrong for LFP — it will either leave the battery short of full or hold it at a voltage that shortens its life. Any charger with a LiFePO4 profile works, and we stock Epoch's own matched chargers in 12V, 24V, 36V and 48V.
How should I store it over winter?
Between 32°F and 95°F, for up to twelve months, and ideally around half charged rather than full or empty — that's kindest to lithium cells. It self-discharges slowly, so a top-up before the next season is usually all it needs.
Can I use it as a starting battery?
No. 170A for three seconds is not enough for engine cranking, and this is a deep-cycle battery. If you need starting capability, Epoch's 12V 172Ah Dual Purpose delivers 1,000A for five seconds and is designed for exactly that.
Do you offer financing or price matching?
Yes. We offer 0% APR financing options through Affirm at checkout, and our Lowest Price Guarantee applies — if you find this battery cheaper at another authorized dealer, call us at (303) 876-7654 before you order and we'll take care of it.
