Power Queen 12/24V 30A MPPT Solar Charge Controller with Built-In Bluetooth
SVT Score, Lower
Power Queen’s 30 A MPPT controller for 12 V and 24 V banks, with built-in Bluetooth, a 20 A load output and a 100 V solar input limit.
$129
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Usability
4.8 out of 10It suits a buyer with up to 450 W of panels on a 12 V bank or 900 W on a 24 V bank who wants phone monitoring and a switched load output, and who will not need panel strings above 100 V or a 48 V bank.
Strengths
- Built-in Bluetoothno add-on module needed
- 98 percent peak conversion efficiency
- 20 A DC load output
- Detects 12 V or 24 V banks automatically
- Full load from -31°F to 113°F
Drawbacks
- 100 V solar input limit keeps strings short
- Tops out at 450 W of panels on a 12 V bank
- No battery temperature sensor named on the spec table
- No networking or parallel operation
- No 36 V or 48 V support
Specs
- CapacityNot applicable
- AC OutputNot applicable
- System Voltage12/24 V auto
- Panel PowerNot applicable
- Charge Current30-39 A
- Safety ListingNone verifiable
- Cell TypeNot applicable
- Low-Temp ChargingNot applicable
- Warranty3 Years
- MonitoringBluetooth built in
- Weight4.4 lb
At a glance
- Die-cast aluminum heat sink
- 10.59 x 3.25 x 7.09 in
- Copper wire connector in box
- LCD and four buttons
Power Queen is the brand of Shenzhen Lizu Time Technology Co., Ltd of Shenzhen, China, which holds its US battery trademark, while its privacy policy names Starrysea Co., Limited of Tsim Sha Tsui, Hong Kong, the company LiTime's contact page also names, and its own pages give no founding year.
It sells direct from ipowerqueen.com, which ships US orders from US warehouses, and through its own Amazon, Walmart and eBay stores, with separate stores for Canada, Germany, France and the UK.
The Power Queen 30A MPPT (store SKU P24V30A-MPPT-BT-B1; model P24V30A-MPPT-BT-B on its Amazon manual) is a 30 A MPPT solar charge controller for 12 V and 24 V battery banks, detecting the system voltage automatically. Its spec table gives a 100 V maximum solar input voltage, a maximum power point range from battery voltage plus 3 V to 76 V, up to 450 W of panels at 12 V and 900 W at 24 V, a 9 to 32 V battery range and a 20 A rated load output. Power Queen gives up to 99 percent tracking efficiency and 98 percent peak conversion efficiency; its German store lists a no-load loss of 12 mA at 12 V and 10 mA at 24 V. It ships set for a 12 V LiFePO4 battery and can be set by hand for Gel, Sealed, Flooded and Lead-Acid batteries. Built in are Bluetooth for app monitoring of the panels, battery and load, an LCD with LED indicators and four buttons, and a die-cast aluminum heat sink rated for full load from -31°F to 113°F; the spec table also lists low-temperature protection. Protections cover over-voltage, over-power, short circuit, reverse connection, reverse charging and over-temperature. It measures 10.59 x 3.25 x 7.09 in and weighs 4.41 lb. In the box, per its Amazon manual: the controller, a copper wire connector and the user manual. The store shows an auto-applied 10% cart discount through October 14, 2026.
Questions answered from our data

Is Power Queen good?We list 12 Power Queen products and score 12 of them. Their overall scores run from 4.6 to 6.1, with a median of 5.4, against a median of 5.5 for all 127 products we score.
How much does an MPPT charge controller cost?The 14 MPPT charge controllers we list run from $90 to $702, with a median of $198.
Are MPPT charge controllers UL listed?Two of the 14 MPPT charge controllers we list carry a UL 1741-type listing we could look up by model.
Which MPPT charge controllers have Bluetooth?13 of the 14 MPPT charge controllers we list offer Bluetooth monitoring, built in or as the maker's add-on.



