The 12V 50Ah Deep Cycle Battery is a 12.8-volt LiFePO4 block of 640 watt-hours on M6 terminals, rated IP65. It is the first true deep-cycle size in the range, built for a small boat, a ride-on or robot mower, and a compact solar setup that a full house battery would oversize.
On The Water
A trolling motor, by speed
A Minn Kota Endura 30 transom trolling motor pulls 8 amps on its lowest speed and 30 at full throttle. Fifty amp-hours give about six hours of slow trolling, three and a half hours at a middle setting, and a little under two hours wide open. The 150-amp five-second peak carries the surge as the prop bites at start.
The Boat House Side
Lights, sounder and pumps
Beyond the motor the same block runs the small-boat house side: navigation lights, a fish finder, a bilge or livewell pump and a stereo. Those loads together draw a few amps. A day on the water leaves capacity for the motor instead of flattening a separate cranking battery. The IP65 case takes the spray and dust an open boat or a mower deck throws at it.
Land Use
Mowers and a small panel
A robotic or ride-on mower runs its cutting and drive motors from a battery this size. The 4,000-cycle rating outlasts the machine it sits in. On a compact solar rig, 640 watt-hours bank a panel’s day of harvest for an evening of LED lighting and phone charging, refilled the next day through a controller set to an LFP profile.
Against Lead
Usable capacity and weight
A 12V 50Ah lead battery yields only about 25 amp-hours before its voltage sags too far to use, and 300 to 500 cycles. This block delivers the full 50 amp-hours down to its cutoff, more than 4,000 cycles at 80 percent depth, and weighs 4.9 kilograms against nine or ten for the lead one.
Data
Datasheet
| Model | DC12-50 |
|---|---|
| Nominal voltage | 12.8V |
| Capacity | 50Ah |
| Energy | 640Wh |
| Charge voltage | 14.6V |
| Discharge cutoff | 10V |
| Continuous discharge | 50A |
| Peak discharge | 150A (5s) |
| Cycle life | ≥4,000 cycles @80% DOD |
| Weight | ≈4.9 kg |
| Dimensions | 197 × 166 × 170 mm |
| Terminals | M6, up to 4S4P |
| Operating temperature | Discharge -20~60°C / Charge 0~45°C |
| Protection rating | IP65 |
| Certification | UN38.3 / CE / FCC / RoHS |
Fit
Charging and banks
Charge at 14.6 volts from a lithium charger or a solar controller on an LFP profile. Up to four blocks go in series for a 48-volt bank and four in parallel for more capacity, matched by resting voltage before any parallel join.
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