Charger
See the Genasun GV-10-Li-14.2V connection points and wiring example. Open the diagram in Crimp to add your equipment and plan the cables between them.
Open this example as a new project. Use your own parts and cable lengths to make the plan yours.
Use the diagram as a starting point for your installation. Replace the example equipment and cable lengths with your own, and check the connections against your exact model's instructions.
1 m one way
12 V system
Sized against ABYC E-11. The design current is the unit's rated output. The length is one way; voltage drop includes an equal-length return.
The editable example uses 3.048 m (10 ft) runs unless a shorter run is stated. Metric overviews round these to 3 m. Adapt the parts and lengths to your installation before choosing cable and protection.
Fixed 14.2 V lithium controller requires compatible 4S BMS. Max 10.5 A, 34 V cold PV Voc; terminals accept no more than 10 AWG/about 5 mm². Internal 20 A fuse is NOT an external battery-cable fuse specification. Leave automatic external cable/fuse choice subject to actual terminal area and battery protection review. Manufacturer installation manual
Wiring diagram
Open this example in Crimp to use your own parts and cable lengths. Review the assumptions and installation notes as you adapt the circuit.
Fixed 14.2 V lithium controller requires compatible 4S BMS. Max 10.5 A, 34 V cold PV Voc; terminals accept no more than 10 AWG/about 5 mm². Internal 20 A fuse is NOT an external battery-cable fuse specification. Leave automatic external cable/fuse choice subject to actual terminal area and battery protection review. Manufacturer installation manual
Edit this wiring exampleInstallation notes
Guidance for this model, with sources linked beside the relevant advice.
Verified against the manufacturer's documentation (rev. GV-10 manual rev 4.1, 2021–2022), checked 2026-10-01. Manufacturer documentation →
GV-10-Li-14.2V is the 14.2 V lithium version, intended for a compatible four-cell LiFePO4 battery. It differs from the lead-acid GV-10 and its charging controls. The battery needs balancing and a BMS that disconnects charging outside its permitted voltage, current and temperature limits. The controller's voltage regulation does not replace those battery protections. See battery and terminal requirements, PDF p. 3.
The manual recommends up to 140 W of PV, with 10.5 A maximum panel short-circuit current and 10.5 A charging output. Absolute PV open-circuit voltage is 34 V; the recommended STC limit is 27 V to leave cold-weather headroom. Check the module's actual temperature coefficient instead of relying on its nominal “12 V” description. See electrical specifications, PDF p. 7.
PV positive/negative connect to the panel pair; battery positive/negative to the output pair. Panel and battery negatives are internally common. The terminals accept up to 10 AWG, approximately 5 mm², with 0.79 Nm tightening torque. Connect loads to a separately protected battery distribution circuit: GV-10 has no load output or low-voltage load disconnect. Do not short the PV terminals while connected.
The internal 20 A ATO fuse is a service item; it is not a prescribed external battery-cable fuse. Add battery-end protection chosen for the actual wire and installation. The manufacturer recommends connecting the panel first, then the battery, while permitting the reverse order. Verify the LED indication and measured battery charging voltage against the lithium profile, and check that the battery BMS can stop charging. See connection sequence, PDF p. 5.
Build it out
Add GV-10-Li-14.2V to your diagram, then connect your batteries, chargers and loads. Crimp calculates cable sizes and checks the connections as you draw.
Every cable you draw there is sized against ABYC E-11, from the same tables as the reference on this page.
Technical reference
Check the model, ratings and connection points against your own unit before choosing installation hardware.
Check stud sizes, fuse type, run length and how warm the space gets against the gear you actually have before you order.
Catalog connection points, current direction and planning limits. Check the manufacturer's pinout and connector ratings before installation.
PV +
pv-pos
positive · input
PV −
pv-neg
negative · input
BATTERY +
out-pos
positive · output
BATTERY −
out-neg
negative · output
Method & provenance
Manufacturer specifications describe the equipment. Crimp calculates cable results from the circuit and assumptions you enter.
From the maker
Manufacturer, model, ratings and which terminal does what come from the catalog. A newer revision, or the nameplate on the unit in your hand, can say something different — when it does, the nameplate wins.
ABYC E-11
Sized against ABYC E-11. Boats built to UK or EU rules answer to ISO 13297 — check these figures against it before you build. The run length and the current above are what drive the result. Crimp doesn't know how warm your space gets; draw the cable inside an engine-bay zone on the canvas and it sizes for the heat.
Next step
Open this example as a new project. Add your equipment and cable lengths, then review the sizing and checks for your setup.