AstroAI S8 Ultra 4000A 12V Lithium Jump Starter vs TOPDON JumpSurge JS3000 3000A 12V Lithium Jump Starter
These are side-by-side facts taken from each product guide: published specifications, strengths and caveats as their sources state them. This page is not a test, a ranking or a verdict about which model is better.
AstroAI S8 Ultra 4000A 12V Lithium Jump Starter
Compact 12-volt starting with USB-C power-bank duty
AstroAI rates the S8 Ultra at 4000 peak amps with smart clamps that read the battery and prompt for Boost below 9 volts. Its manual specifies a 59.2 watt-hour pack, two USB-A outputs and a USB-C port, but AstroAI's product page lists a different capacity and a lower engine rating under the same name.
Published specifications
- AstroAI: 4000 A peak current; 12-volt vehicles only, per the manual
- Manual: 59.2 Wh pack, 4000 mAh at 14.8 V, quoted as 16000 mAh at 3.7 V
- Manual: two USB-A outputs at 5V 3A, plus one USB-C input and output
- Manual: operation -4F to 122F; charging 32F to 113F
- Manual: box holds clamps, USB-A to USB-C cable, storage bag; no charger
- Manual: 2-year limited warranty, original purchaser only, non-transferable
Strengths
- Smart clamps signal correct connection, reversed polarity and a low battery
- AstroAI publishes the full manual on its own site, with capacity and temperature bands
- USB-C port works as both input and output on this model's manual
Caveats
- Engine rating differs: the listing claims all gas and 12L diesel, AstroAI's page says 10L and 8L
- Capacity differs: 59.2 Wh in the manual against 24000 mAh on AstroAI's product page
- Warranty covers the original purchaser only and does not transfer with the unit
Read the full AstroAI S8 Ultra 4000A 12V Lithium Jump Starter guide
TOPDON JumpSurge JS3000 3000A 12V Lithium Jump Starter
Larger 12-volt engines to 9L gas or 7L diesel, plus USB-C power
TOPDON rates the JS3000 at 3000 peak amps from a 24000 mAh, 88.8 watt-hour pack, with USB-C PD45W in and out, two USB ports, a 10-amp DC output and a BOOST function for a flat battery. Its own support pages document a four-start lockout in any ten-minute window.
Published specifications
- TOPDON: 3000 peak amps; 24000 mAh / 88.8 Wh; 9L gas and 7L diesel
- Profile: USB-C PD45W input and output, to 20V 2.25A on the output side
- Profile: USB1 QC18W 5V/3A, 9V/2A, 12V/1.5A; USB2 5V/2A; DC 10A max 16.8V
- Profile: power and BOOST buttons on the unit; clamp leads 250 mm and 200 mm
- Support: four starts in ten minutes, then a ten-minute automatic lockout
- Support: supplied 5V/3A adapter reaches a full charge in about six hours
Strengths
- TOPDON publishes a full port and output table in its JS3000 product profile
- Support pages document each protection and how it shows itself on the unit
- USB-C is bidirectional at PD45W for both input and output
Caveats
- Four starts in ten minutes triggers a lockout that blocks all output for ten minutes
- Operating range differs: TOPDON says minus 4F to 140F, the listing says 14F to 104F
- Warranty term is stated as 2 years and 1 year on the same listing, with no manual found
Read the full TOPDON JumpSurge JS3000 3000A 12V Lithium Jump Starter guide
How to choose between them
Choose the AstroAI S8 Ultra 4000A 12V Lithium Jump Starter if your situation matches: Compact 12-volt starting with USB-C power-bank duty. Its main caveat: Engine rating differs: the listing claims all gas and 12L diesel, AstroAI's page says 10L and 8L.
Choose the TOPDON JumpSurge JS3000 3000A 12V Lithium Jump Starter if your situation matches: Larger 12-volt engines to 9L gas or 7L diesel, plus USB-C power. Its main caveat: Four starts in ten minutes triggers a lockout that blocks all output for ten minutes.
Both entries repeat what each guide records. Confirm the model, included parts and availability on the current listing before ordering.
Primary sources
- AstroAI S8 Ultra Multifunctional Jump Starter user manual, V3.0.0 (AstroAI-hosted) Source for AstroAI S8 Ultra 4000A 12V Lithium Jump Starter
- AstroAI S8 Ultra product page with technical details table Source for AstroAI S8 Ultra 4000A 12V Lithium Jump Starter
- AstroAI S8 Ultra user manual, copy attached to the listing Source for AstroAI S8 Ultra 4000A 12V Lithium Jump Starter
- TOPDON JumpSurge3000 product page Source for TOPDON JumpSurge JS3000 3000A 12V Lithium Jump Starter
- TOPDON JS3000 Product Profile, with specification and comparison tables Source for TOPDON JumpSurge JS3000 3000A 12V Lithium Jump Starter
- TOPDON support knowledge base, Jump Starters article, JS Series section Source for TOPDON JumpSurge JS3000 3000A 12V Lithium Jump Starter
- TOPDON After-Sales Service Policy Source for TOPDON JumpSurge JS3000 3000A 12V Lithium Jump Starter
Primary sources checked .