Knowledge Base › Dc Dc Converters
Sterling Power BB1220
Official manufacturer GLOBAL verified Sept. 25, 2026
Official product web page: https://sterling-power.com/collections/battery-to-battery-chargers/products/12v-to-12v-120a-dc-to-dc-charger-bb12120
Identity
| brand | Sterling Power |
| category | dc_dc_converters |
| manufacturer | Sterling Power |
| manufacturer_key | sterlingpower |
| model | BB1220 |
| model_key | bb1220 |
| product_family | Battery to Battery Charger |
| product_status | active |
| region | GLOBAL |
| series | Saturn |
| variant | — |
Electrical
| bidirectional |
True
Sterling Power Saturn / BB collated manual
|
| cooling |
Thermostatically Controlled Variable low speed fan
Sterling Power Saturn / battery-to-battery charger collated instruction manual
|
| efficiency_percent |
98%
Sterling Power Saturn / BB collated manual
|
| input_current_max_a |
21
Sterling Power Saturn / BB collated manual
|
| input_voltage_range |
9V-16V
Sterling Power Saturn / BB collated manual
|
| input_voltage_range_v | 12 (nominal) |
| max_efficiency_pct | 95-98 |
| official_product_url |
https://sterling-power.com/products/12v-to-12v-120a-dc-to-dc-charger-bb12120
Saturn 12V to 12V DC to DC charger range — inventory record source_url
|
| output_current_a |
19
Sterling Power Saturn / BB collated manual
|
| output_voltage_v |
14.41
disputed
Sterling Power Saturn / BB collated manual
|
| rated_output_current_a | 20 |
| rated_power_w | 280 |
| topology | Bidirectional buck-boost, with reverse charging and jump-start assistance mode |
Physical / mechanical
| depth_mm |
56
Sterling Power Saturn / BB collated manual
|
| length_mm |
123
Sterling Power Saturn / BB collated manual
|
| weight_kg |
0.6
Sterling Power Saturn / BB collated manual
|
| width_mm |
130
Sterling Power Saturn / BB collated manual
|
Environment
| operating_temperature_max_c |
60
Sterling Power Saturn / battery-to-battery charger collated instruction manual
|
| operating_temperature_min_c |
-20
Sterling Power Saturn / battery-to-battery charger collated instruction manual
|
Protection
| protections |
self-recovering under voltage, input OVP, output OVP, over current, charge over temperature
disputed
Sterling Power Saturn / battery-to-battery charger collated instruction manual
|
Certifications
| certifications |
['CE', 'UKCA']
Sterling Power Saturn / battery-to-battery charger collated instruction manual
|
Documents
installation_manual
Sterling Power Saturn / BB collated manual
product_page
Saturn 12V to 12V DC to DC charger range
product_page
Sterling Power BB1220 product page
Recorded conflicts
protection.protections Review required
self-recovering under voltage, input OVP, output OVP, over current, charge over temperature — stored value
6 self-recovering protections; low-temperature charge trip for lithium-ion batteries; current-limiting charger; lithium safe — incoming package
Detected during import deep-enrich-pass2-2026-09-batch03
electrical.output_voltage_v Review required
14.41 — stored value
12 (nominal) — incoming package
Detected during import deep-enrich-pass2-2026-09-batch03
Additional documented parameters
Recorded verbatim from the source; no schema field exists for these yet.
| builder_completeness | partial |
| region_notes | UK manufacturer (sterling-power.com). These are DC-input/DC-output products with a single published specification, not market-specific electrical variants. |