CrimpComponent folio · Charger · Sterling Power
BB1230
30A 12V→12V battery-to-battery charger.
Open in Crimp →
Sterling BB1230 · 4 terminals
01 — Reference run
A sizing result with its assumptions attached.
Conductor10 mm²8 AWG
Fuse40 Apositive run
Voltage drop2.6%3 m one way
Design current30 A12 V system
The Crimp engine applies its ordinary continuous-load headroom, voltage-drop budget, terminal clamp, and standard fuse ladder. The 3 m one-way run is a stated reference, not a universal installation prescription.
02 — Catalog specification
The part the engine actually sees.
- Rated output
- 30 A
- Typical charge current
- 28 A
- Canvas footprint
- 200 × 110 px
Terminal map
| Terminal | Polarity | Direction | Rating |
|---|---|---|---|
| IN + | positive | input | 60 A |
| IN − | negative | input | 60 A |
| OUT + | positive | output | 30 A |
| OUT − | negative | output | 30 A |
03 — Supporting parts
What belongs around it.
- 6 m total of 10 mm² (8 AWG) marine cable
- Four 10 mm² cable lugs matched to the equipment studs
- 40 A fuse and holder on the positive run
- Heat-shrink, strain relief, and terminal boots sized to the cable
See what it changes in your system
With JavaScript enabled, describe your existing boat, van, or off-grid system here. The model supplies topology; Crimp's engine computes the attachment, resized runs, checks, and supporting basket.