We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Red rectangular jump starter unit with attached cables

Tenker

Tenker ET05 4000A 10000mAh Jump Starter

SKU CH-R70Z-JDRHS MPN ET05

A 10000mAh power bank delivers 4000A peak current to start 12V vehicles and charges devices via USB ports

  • TypeJump Starters
  • Amp4000 A
  • ColorRed
  • Jump-starts 12 V vehicles with 4000 A peak current
  • 10000 mAh capacity powers devices through USB ports
  • Compact red design fits in glovebox or boot
  • Built-in safety protections guard against reverse polarity and short circuits
  • Multi-function unit acts as jump starter, power bank and charger

4000 A jump starter with 10000 mAh capacity

The Tenker ET05 delivers a 4000 A peak current from a 10000 mAh battery to start 12 V vehicles. It also works as a portable power bank for charging phones and other USB devices. The unit is supplied new in red.

Drivers who need a compact 12 V booster

Suits motorists wanting a lightweight jump pack that fits in a glovebag and can top up mobile gadgets. Not intended for buyers who need more storage capacity for extended off-grid power or for workshops requiring a heavier-duty unit with higher cranking reserves.

4000 A peak current rating

The 4000 A peak figure determines whether the starter can turn over your specific engine. Check the vehicle manufacturer's cranking requirement against this number before purchase.

Highlights

  • Jump-starts 12 V vehicles with 4000 A peak current
  • 10000 mAh capacity powers devices through USB ports
  • Compact red design fits in glovebox or boot
  • Built-in safety protections guard against reverse polarity and short circuits
  • Multi-function unit acts as jump starter, power bank and charger

Specifications

BrandTenker
ModelET05
TypeJump Starters
Amp4000 A
ColorRed

Questions about this item

How many engine starts can I expect from the 10000mAh capacity in a real vehicle?

The 10000mAh battery provides enough reserve for multiple jump starts of a 12V vehicle before needing a recharge, typically several times depending on engine size and battery condition.

What does the 4000A peak current rating mean for the clamps and cables in practice?

The 4000A peak rating represents the maximum instantaneous current the unit can deliver through its heavy-duty clamps to crank a 12V engine, limited by the internal battery and cable gauge.

What physical space do I need to store the ET05 jump starter in my vehicle?

The compact ET05 fits easily in a glovebox, centre console or door pocket, making it simple to keep the 10000mAh power bank and 4000A booster ready for emergencies.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.