TL;DR
Bluetti has introduced the Charger 2, a DC-DC car charger that can deliver up to 1,200W to power stations by combining alternator and vehicle-mounted solar inputs. It can also reverse power flow to jump-start or maintain a starter battery when used with compatible Bluetti power stations.
What happened
Bluetti unveiled the Charger 2, a DC-DC alternator charger designed to charge portable power stations from a vehicle. The unit reaches a stated peak of 1,200W by combining up to 800W drawn from a vehicle’s alternator with up to 400W from rooftop solar panels while driving. When the vehicle is parked, the Charger 2 can accept up to 600W of solar input into a connected power station without draining the starter battery. Bluetti says the product is compatible with roughly 95 percent of power stations on the market for charging purposes, though the reversible charging features — which can jump-start a car or maintain its starter battery — function only with Bluetti power stations such as the Apex300. Installation follows the typical alternator-charger approach and can be a DIY job for users comfortable routing cable and connecting to the starter battery. The Charger 2 is offered at a CES promotional price of $349 until February 7, after which Bluetti lists it at $599.
Why it matters
- Faster in-vehicle charging reduces time spent driving just to recharge portable power stations compared with using a 12V cigarette-lighter outlet.
- Combining alternator and solar inputs lets users leverage vehicle movement and rooftop panels together for higher charge rates.
- Ability to accept solar input while parked without draining the starter battery supports daytime recharging for off-grid users.
- Reverse-charge capability can assist with vehicle starting or maintaining starter batteries — but only when paired with Bluetti power stations.
Key facts
- Maximum combined charge rate: up to 1,200W while driving.
- Alternator contribution: up to 800W; solar contribution while driving: up to 400W.
- Solar input while parked: up to 600W into a connected power station without draining the starter battery.
- Reverse charging (jump-start/maintain starter battery) works only with Bluetti power stations such as the Apex300.
- Bluetti states Charger 2 is compatible with about 95% of power stations on the market for charging.
- Charger 2 is roughly 10 times faster than charging via a 12V cigarette lighter outlet, per the report.
- CES special pricing: $349 until February 7, then $599 afterward.
- Charger 2 can reuse cabling from Bluetti’s earlier Charger 1 unit; Charger 1 owners were offered a $99 upgrade for a limited period.
What to watch next
- Real-world charge rates across different vehicle alternator capacities and driving conditions — not confirmed in the source.
- Long-term effects on vehicle alternators and starter batteries when routinely supplying high charging loads — not confirmed in the source.
- Whether Bluetti or third parties will provide expanded compatibility for reversible charging beyond Bluetti power stations — not confirmed in the source.
Quick glossary
- DC-DC charger (alternator charger): A device that converts and regulates direct current from a vehicle’s alternator (and often solar panels) to charge batteries or power stations safely while the vehicle is running.
- Starter battery: The vehicle battery used primarily to start the engine and power vehicle electronics when the engine is off; separate from auxiliary or house batteries in some rigs.
- Power station: A portable battery system with AC and DC outputs used to run appliances, charge devices, or act as a backup energy source.
- Solar input: Electricity generated by photovoltaic panels that can be fed into a charger or battery system to replenish stored energy.
- DC Hub: A distribution unit that provides multiple 12V DC outputs for devices like fridges, lights, or networking terminals in vehicle setups.
Reader FAQ
Does the Charger 2 work with non-Bluetti power stations?
Bluetti says the Charger 2 is compatible with about 95% of power stations for charging purposes.
Will the reversible jump-start feature work with third-party power stations?
No — the source states the reverse charging aspects work only with Bluetti power stations.
How much does the Charger 2 cost?
It is available at a CES promotional price of $349 until February 7, after which the price rises to $599.
Is installation something a typical owner can do themselves?
The source describes installation as straightforward for many and suitable as a DIY project if you’re comfortable routing cables and connecting to the starter battery.
Does using Charger 2 affect vehicle alternator lifespan?
not confirmed in the source

TECH NEWS SCIENCE Bluetti now charges power stations at up to 1200W in your car It simultaneously combines inputs from the alternator and solar panels when driving. by Thomas Ricker…
Sources
- Bluetti now charges power stations at up to 1200W in your car
- BLUETTI tackles charging bottlenecks and circular tech …
- Bluetti launches Alternator & Solar dual DC Charger 2 …
- BLUETTI Unveils 'Charger 2' Hub for RV Market at CES 2026
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