# SYPOM 4000A Peak 12V Car Jump Starter Power Pack

SYPOM’s 4000A Peak 12V Portable Car Jump Starter Power Pack is a portable booster with a claimed capacity for petrol engines and diesel engines up to 10.0L. It also serves as a USB power bank and has an LCD display and three-mode light, making it a roadside option with several functions in one unit.

- [Original product page](https://bargainpostbox.co.uk/product/sypom-4000a-12v-car-jump-starter-power-pack)
- [View offer](https://bargainpostbox.co.uk/visit/sypom-4000a-12v-car-jump-starter-power-pack)
- Market: UK
- Language: en-GB
- Currency: GBP
- Brand: SYPOM
- Category: Cars & Motorcycles > Vehicle Accessories
- Price: 33.99 GBP
- Previous price: 39.99 GBP
- Discount: 15%
- Price checked: 2026-11-12T15:37:29.344Z
- Rating: 4.5 / 5
- Reviews: 710

Prices and deal status are the latest recorded data, not a guarantee of availability. Confirm the price and availability with the store.

## At a glance

- Claimed support for petrol engines and diesel engines up to 10.0L, with up to 70 jump starts per charge.
- LCD shows battery level and operating status, according to the listing.
- Dual USB outputs provide power-bank functionality. The light has flashlight, strobe and SOS modes.
- The listing describes protection against overcurrent, short circuit and reverse polarity.

## Pros

- Combines jump starting, dual USB power-bank outputs and a three-mode emergency light.
- A compact listed size and claimed EVA case suit storage in a car.
- Customer feedback reports portability and useful car-starting performance.

## Specifications

### Identity
- Brand: SYPOM
- Manufacturer part number: A43
### Jump starting
- Voltage: 12 Volts
- Amperage: 4000 Amps
- Claimed diesel compatibility: up to 10.0L diesel engines
### Display and lighting
- Screen technology listed: LCD
### Power and battery
- Battery type: Lithium Polymer
- Battery capacity: 4000 Amp Hours
- USB outputs: dual USB outputs
### Dimensions and vehicle fit
- Dimensions listed: 3.8D x 8.9W x 19.1H centimetres
- Vehicle service type: Passenger Car
- Automotive fit: Universal Fit

## Before you buy

- Listing details are inconsistent or unconfirmed: 4000 Amp Hours is given as battery capacity, while the title and feature text describe 4000A peak starting current. The listing also alternates between Passenger Car and broader claims for trucks, motorcycles and RVs, and between a generic 10L diesel claim and 10.0L diesel engines. Confirm that the engine compatibility and capacity figures suit your vehicle. Up to 70 starts is a listing claim, not an unconditional guarantee.

## In the box

- Smart jumper cables (Check selected pack): Mentioned in feature text, not in an explicit package inventory.
- Charging cable (Check selected pack): Mentioned in feature text, not in an explicit package inventory.
- EVA carrying case (Check selected pack): Mentioned in feature text, not in an explicit package inventory.
- User manual (Check selected pack): Mentioned in feature text, not in an explicit package inventory.

## A good fit for

- Drivers wanting a portable jump starter for roadside backup who also value USB charging and an emergency light.
- Buyers whose vehicle falls within the listing’s stated 12V and engine-size claims, after checking the inconsistencies against their vehicle.

## Less suited to

- Anyone needing a confirmed battery capacity or verified compatibility for a specific vehicle without checking the listing details first.

## Customer feedback

Customer feedback highlights reported car-starting usefulness, portability, quick recharging and charge retention over months, alongside positive comments about value. These reports fit the intended role of a stored roadside booster, but do not verify the claimed engine coverage or up-to-70-start figure. The rating distribution is mostly five- and four-star, with a smaller one-star share, so experiences are not uniformly positive.
- Positive themes: Customers report that it works well for starting cars.
- Positive themes: Feedback describes it as portable and notes quick recharging and charge retention over months.
- Positive themes: Some customer feedback describes it as good value.

## Frequently asked questions

### What vehicles is this jump starter intended for?
The listing specifies 12V use and gives a Passenger Car vehicle-service type, while its feature text also mentions cars, trucks, motorcycles and RVs. Check compatibility for your vehicle, as the coverage claims are not consistent.
### What other functions does it offer?
The listing describes dual USB outputs for power-bank use, an LCD for battery level and operating status, and a light with flashlight, strobe and SOS modes.
### How many jump starts does one charge provide?
The listing claims up to 70 jump starts per charge. Treat this as a maximum claim rather than a guaranteed result for every vehicle or use.
### What is included?
The feature text claims a smart jumper cable set, charging cable, EVA case and user manual. The page does not provide an explicit package inventory, so check the selected listing for confirmation.

## Alternative options

- [NOCO Boost GB40 1000A Jump Starter Power Pack - 6.0L Petrol & 3.0L Diesel \| UltraSafe: Spark-Proof & Reverse Polarity Protection, USB Power Bank, 12V Battery Booster for Cars, Motorcycles, Vans & More](https://bargainpostbox.co.uk/visit/sypom-4000a-12v-car-jump-starter-power-pack)
- [Jump Starter Power Pack, 4000A Car Battery Booster Jump Starter for 12V Vehicles and Motorbikes \(9.0L Petrol or 8.5L Diesel\), Car Jumper Starter Power Bank with Jump Leads, LED Light/USB QC3.0 \(Red\)](https://bargainpostbox.co.uk/visit/sucfocus-f19-4000a-12v-jump-starter)
- [NOCO Boost X GBX55 1750A Jump Starter Power Pack - 7.5L Petrol, 5.0L Diesel \| UltraSafe: Spark-Proof & Reverse Polarity Protection, 60W USB-C Power Bank, 12V Battery Booster for Cars, Motorcycles & More](https://bargainpostbox.co.uk/visit/sypom-4000a-12v-car-jump-starter-power-pack)
- [NOCO Boost GB150 3000A Jump Starter Power Pack - 9.0L Petrol & 7.0L Diesel \| UltraSafe: Spark-Proof & Reverse Polarity Protection, USB & 12V Power Bank, Battery Booster for Cars, Vans, 4x4s & More](https://bargainpostbox.co.uk/visit/sypom-4000a-12v-car-jump-starter-power-pack)
- [NOCO Boost GBX155 4250A Jump Starter Power Pack - 10.0L Petrol, 8.0L Diesel \| UltraSafe: Spark-Proof & Reverse Polarity Protection, 60W USB-C Power Bank, 12V Battery Booster for Cars, Vans, 4x4s & More](https://bargainpostbox.co.uk/visit/sypom-4000a-12v-car-jump-starter-power-pack)
- [JDMCAR Jump Starter Power Pack ���������� 12V 9.0L Diesel 8.5L Petrol SUV \| Jump leads and LED light. Overcurrent and reverse polarity protection for car, truck, motorcycle and SUV](https://bargainpostbox.co.uk/visit/jdmcar-11-6000a-12v-jump-starter)
- [Povasee Jump Starter Power Pack, 6000A Car Battery Booster Jump Starter Power Bank \(up to 10L Petrol/8L Diesel\), 12V Jump Pack Car Starter with Jump Leads, Emergency LED and 2 USB Ports](https://bargainpostbox.co.uk/visit/sypom-4000a-12v-car-jump-starter-power-pack)
- [NOCO Boost X GBX45 1250A Jump Starter Power Pack - 6.5L Petrol, 4.0L Diesel \| UltraSafe: Spark-Proof & Reverse Polarity Protection, 60W USB-C Power Bank, 12V Battery Booster for Cars, Motorcycles & More](https://bargainpostbox.co.uk/visit/sypom-4000a-12v-car-jump-starter-power-pack)
- [PSOOO Jump Starter 12V 8000A Power Pack Car Battery Pack \(up to 10.0L Gas or 8.5L Diesel Engine\) Jump Cable with Smart Clip and LED light \(Red\)](https://bargainpostbox.co.uk/visit/sypom-4000a-12v-car-jump-starter-power-pack)
- [YaberAuto Jump Starter Power Pack 8000A with Air Compressor 160PSI, 12V Car Battery Booster Jump Starter \(All Gas 14L Diesel\), 27,000mAh Car Jump Starter Power Bank with LED Light, Jumper Cables](https://bargainpostbox.co.uk/visit/sypom-4000a-12v-car-jump-starter-power-pack)
- [6000A Jump Starter Power Pack,Sodium ion battery No Fire No Explosion \| 12V Car Battery Booster Starter\(All Petrol/12L Diesel\),-40°C Ready,10-year life,Jump leads & LED light, Portable Power Bank](https://bargainpostbox.co.uk/visit/sypom-4000a-12v-car-jump-starter-power-pack)
- [KOPUO 6000A 12V Jump Starter Power Pack with Air Compressor-Green \| 150PSI Portable Car Battery Booster Jump Starter for 8L Gas/6.5L Diesel, Car Jump Starter with full kit for Car, Motorcycle](https://bargainpostbox.co.uk/visit/sypom-4000a-12v-car-jump-starter-power-pack)

## Add-ons

- [AstroAI Tyre Inflator Air Compressor 12V DC, Digital Car Tyre Pump 150PSI \| Precise Control/Preset Pressure/Auto Shutoff, Fast Inflation Electric Pump for Car Motorcycle Bike Tyres](https://bargainpostbox.co.uk/visit/sypom-4000a-12v-car-jump-starter-power-pack)
- [MOTOPOWER MP69033 OBD2 Scanner Universal Car Engine Fault Code Reader, CAN Diagnostic Scan Tool for All OBD II Protocol Cars](https://bargainpostbox.co.uk/visit/sypom-4000a-12v-car-jump-starter-power-pack)

## Images

![SYPOM 4000A Peak 12V Car Jump Starter Power Pack — 1](https://bargainpostbox.co.uk/i/bCKhxi0x1v1GsG-ssJYkMfUhgmOGcC2L5fBSToJ2SP0ogMqNyGp2rB01smRfQUnoRGcHpWQU8s1Kaw299x7kjdbAeIAWR4VC45ZEbCXyJBMDWVm1rA_xCMrH.jpg)

![SYPOM 4000A Peak 12V Car Jump Starter Power Pack — 2](https://bargainpostbox.co.uk/i/V42mrigPJnTbN8v3YNZt2COlQ_5DcizBEMlxYqo5NUpjteqGIoj8xT865sTN9FPpEVtbd7R-4PoZmBii-WjhQL6vSWAuCB2tT-t6I04Njb605tYa0W5IKpNc.jpg)

![SYPOM 4000A Peak 12V Car Jump Starter Power Pack — 3](https://bargainpostbox.co.uk/i/IV9QX8a-y8bO5CuKA5RcWq8Ju9n0766vkYK9k3nACtGBiTztysOS6RrK64nkYBMlKJzCm8SLVSIC90P38ipzJHoZjGl9V-5WZKPFYT9gLlzKj8vbmG4_AT_c.jpg)

![SYPOM 4000A Peak 12V Car Jump Starter Power Pack — 4](https://bargainpostbox.co.uk/i/vvcufFudjxgikFUNr-Xex-i4YkJN87hX2O78MjB0aLvO6Cwn99QkmKD11cnJbgbvqooS96kHC1NLUeiKL4gu92BZPb3Uk2iHCKd8DALo_uQ0RHH0NQ1LZlyw.jpg)

![SYPOM 4000A Peak 12V Car Jump Starter Power Pack — 5](https://bargainpostbox.co.uk/i/C3mU2bUIVviS9rjO2r6YenKXGB7KtIttj8yuMQDbSw9nXxX6pQvELas8rGWxUvKi_QZuEi2DMbe-S6pdy15blnIBf0XzCZ_907blY1vejaCdsfq8J-zWCz_p.jpg)

![SYPOM 4000A Peak 12V Car Jump Starter Power Pack — 6](https://bargainpostbox.co.uk/i/mD2xQp_gzQe_1mmvmVmGY6LrmHzZm_Eqpt27lQHSiThMv8yyYqzGaED_kVNd7s_BL-aD8KmfZzpYvXYNJKSFmNUU5v56JXMKzaKKg8REHwg6z2wXew-t9klq.jpg)