# SEESII CG120 Cordless Electric Caulk Gun, 10 oz, 2 x 2.0Ah Batteries

The SEESII CG120 electric caulk gun is a cordless 10 oz applicator supplied with two 2.0Ah batteries, according to the listing. Stepless speed adjustment and an automatic drip-stop are intended to give more control during sealing work, while the claimed battery runtime and compatibility details need careful interpretation.

- [Original product page](https://bargainpostbox.co.uk/product/seesii-cg120-cordless-electric-caulk-gun)
- [View offer](https://bargainpostbox.co.uk/visit/seesii-cg120-cordless-electric-caulk-gun)
- Market: UK
- Language: en-GB
- Currency: GBP
- Brand: Seesii
- Model: CG120
- Price: 52.99 GBP
- Previous price: 65.99 GBP
- Discount: 20%
- Price checked: 2026-11-12T19:09:14.945Z
- Rating: 4.4 / 5
- Reviews: 194

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

- Stepless speed adjustment is intended to help adapt dispensing to small repairs and larger sealing jobs. The listing advises gradually increasing speed with thicker products.
- The claimed automatic drip-stop cuts dispensing when the trigger is released.
- A full-circle LED is claimed to provide a wider, brighter work area.
- The listing claims two 2000mAh batteries can dispense approximately 100 tubes of 300ml sealant per full charge of both batteries.

## Pros

- Two batteries and a charger are listed, allowing a second battery to be available while the first is charging.
- Variable speed, a work light and automatic drip-stop target common control and visibility needs when applying sealant.
- Customer feedback reports ease of use and helpful battery life, though these are reported experiences rather than verified performance.

## Cons

- The listed weight is 2.32 kg, which may be a consideration for prolonged overhead or one-handed work.

## Specifications

### Identity
- Brand: Seesii
- Model: CG120
- Colour: Blue
- Capacity stated in title: 10 Oz
### Power and battery
- Power configuration: Battery Powered
- Voltage: 21 Volts
- Battery type: Lithium Ion
- Batteries listed: 2 Lithium Ion batteries required. \(included\)
### Dimensions and installation
- Dimensions listed: 44.2 x 7.62 x 29.18 cm; 2.32 kg
- Weight listed: 2.32 kg
### Materials and protection
- Material listed: Environmentally friendly ABS, Stainless steel
### Application
- Speed adjustment: Stepless Speed ​​Adjustment
- Light: Upgraded LED Light
- Drip control: Drip-proof Design
- Claimed compatible cartridge capacity: 10oz

## Before you buy

- Listing details are inconsistent or unconfirmed: the title states 10 Oz, while battery runtime is described using 300ml tubes. Battery compatibility is claimed for Makita 18V and 21V packs in one section and specifically labelled 18V in another. The listed weight is 2.32 kg, but a separate description says 2.84 pounds. Confirm cartridge fit and the included battery configuration for the selected listing. The approximately 100-tube figure is a manufacturer claim, not a guaranteed runtime.

## In the box

- Power adapter (Included)
- 1 installation manual (Included)
- 1 needle (Included)
- 2 x 2000mAh batteries (Included)
- Electric caulking gun (Included)

## A good fit for

- DIY users and tradespeople applying sealant across repeated joints who want powered dispensing rather than manual trigger operation.
- Buyers who value variable speed, an illuminated work area and a claimed drip-stop for controlled sealing.

## Less suited to

- Anyone seeking a verified runtime guarantee or a settled answer on compatibility with a particular Makita battery pack.
- Users prioritising a clearly lightweight tool for prolonged overhead work.

## Customer feedback

Customer feedback reports that the gun works well and is easy to use, with positive remarks about battery life and usefulness for larger deployments. Speed control feedback is mixed, including a report that the knob can be bumped out of position. That matters for buyers relying on adjustable dispensing speed. These are customer impressions and do not verify the listing's runtime or other performance claims.
- Positive themes: Customers report ease of use and effective operation.
- Positive themes: Customers appreciate the battery life and mention usefulness on larger jobs.
- Mixed feedback: Speed control receives mixed feedback, including a report that the adjustment knob is easily bumped out of position.

## Frequently asked questions

### What comes with the SEESII CG120?
The listing's explicit contents list names one charger, one installation manual, one needle, two 2000mAh batteries and the electric caulking gun.
### What cartridge size does it support?
The title describes a 10 Oz gun and the features say it dispenses 10oz of material. The runtime claim separately refers to 300ml tubes, so check that your cartridges fit before buying.
### Can it use Makita batteries?
The listing claims compatibility with several Makita packs, but its voltage wording varies between 18V and 21V. Confirm compatibility with your exact battery model rather than assuming every listed pack will work.
### How is the dispensing speed controlled?
The listing describes stepless speed adjustment. It advises increasing the speed gradually when working with thicker products.

## Alternative options

- [Cordless Caulking Gun Compatible with DeWalt 20V Max Battery\(NO Battery\)300ml Electric Caulking Gun with Anti-Drip,Auto Retract,LED Light,6 Speed for Filling, Sealing, Repair](https://bargainpostbox.co.uk/visit/seesii-cg120-cordless-electric-caulk-gun)
- [Cordless Caulking Gun with 2 x 2000mAh Batteries, 21V Electric Silicone Sealant Gun with 6 Adjustable Speed & LED Light, Anti-Drip, 9pcs Caulk Remover Tool for Home Sealing,Filling,Installation](https://bargainpostbox.co.uk/visit/seesii-cg120-cordless-electric-caulk-gun)
- [Cordless Caulking Gun, Electric Caulk Gun with 2 x 3.0Ah Batteries \| 10Oz/300Ml Capacity, 6-Speed Control, 13Pcs Caulk Tools, LED Light, Auto Retract Dripless Design, For Sealing Repairing](https://bargainpostbox.co.uk/visit/seesii-cg120-cordless-electric-caulk-gun)
- [MUMIK Electric Caulking Gun, Cordless Silicone Gun Applicator with 2X2000mAh-Batteries, Led Light, Unlimited Speed Adjustment, Anti-Drip Sealant Gun for 300ml Cartridges](https://bargainpostbox.co.uk/visit/seesii-cg120-cordless-electric-caulk-gun)
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- [Polegas Electric Caulking Gun, 21V Cordless Caulk Gun \| Sealant Gun with 2 x 2000mAH Battery and Charger, 4 Adjustable Speeds, LED Light, Silicone Gun for Filling, Sealing](https://bargainpostbox.co.uk/visit/seesii-cg120-cordless-electric-caulk-gun)
- [Cordless Electric Caulking Gun, Silicone Sealant Gun with 4 Speed Adjustable, Built-in LED Light and Anti-Drip Automatic Retraction, Complete Finishing Tool Kit for Home & Trade Sealing Work](https://bargainpostbox.co.uk/visit/seesii-cg120-cordless-electric-caulk-gun)
- [Tilswall Paint Sprayer Shark700, Fits Makita 18V \(No Battery\), Blue \| Cordless Paint Sprayer, Brushless Motor, Side-Fill,1300ml Large Tank, Easy to Clean, Ideal for Fence, Walls, Sheds, Furniture](https://bargainpostbox.co.uk/visit/seesii-cg120-cordless-electric-caulk-gun)
- [SHALL Cordless Caulking Gun,21V Electric Sealant Gun with LED Light, 4 Adjustable Speeds, Anti-Drip Design, Fits 300ml Cartridges for Sealing & Filling](https://bargainpostbox.co.uk/visit/seesii-cg120-cordless-electric-caulk-gun)
- [SEESII 4-in-1 Cordless SDS-Plus Hammer Drill 2.8J, 26mm, 2X 4.0Ah Batteries \| 4-Mode with Safety Clutch, Rotary Hammer Drill with 2 Chisels and 3 Drill Bits Set for Concrete Drilling & Home Renovation](https://bargainpostbox.co.uk/visit/seesii-cg120-cordless-electric-caulk-gun)
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- [Cordless Caulking Gun with 2 x 2.0Ah Batteries, Electric Silicone Sealant Gun with Stepless Speed Adjustable, LED Light, Anti-Drip, LCD Display, Caulking Nozzle Set for Sealing, Filling, Leak Proof](https://bargainpostbox.co.uk/visit/seesii-cg120-cordless-electric-caulk-gun)

## Images

![SEESII CG120 Cordless Electric Caulk Gun, 10 oz, 2 x 2.0Ah Batteries — 1](https://bargainpostbox.co.uk/i/Dmn7gQs715zSreXSydG9TN3uJMp1RHcip4n2a85_hnh9kFIeV-J1TbNbggaH7kspjWl02BraaMU9IlVY_loBuhsfVM03HwFYdzR_H1sgCJA4-TaJylfbMMmn.jpg)

![SEESII CG120 Cordless Electric Caulk Gun, 10 oz, 2 x 2.0Ah Batteries — 2](https://bargainpostbox.co.uk/i/Iu6s5oh1Xt2QRtNfyIrjkwxIOHCg2JiatHzVxSiXmfVbznzHhp2u_xhZNez_gRUNmkyAC60Is6UA0cGISG8SuI_nZ2DJuPixfdztTo0ssDkogaCHvabobU0p.jpg)

![SEESII CG120 Cordless Electric Caulk Gun, 10 oz, 2 x 2.0Ah Batteries — 3](https://bargainpostbox.co.uk/i/ssIkGNNxgY3jX61S3rGPcY4DSPAIBTpVcW8pt0_a-GhsxGTuTXp9ngz1luYvUQPt6Uw_S2pKHLnZmxoaX1f21m4qzaDGE_IarLX4dQOkvpQIHgyyqfc6c8Mc.jpg)

![SEESII CG120 Cordless Electric Caulk Gun, 10 oz, 2 x 2.0Ah Batteries — 4](https://bargainpostbox.co.uk/i/RmGUwgRMzxX-7wFGFZJuUYDK3UjJ3aAngzmstKJuM6VE1SbBmdyOSk5vnWGrzXvgLif5gFIA2kc-84T4miqABZzIMwKiimPeLbc3ZlU4a2_uXZtVpeETxM5R.jpg)

![SEESII CG120 Cordless Electric Caulk Gun, 10 oz, 2 x 2.0Ah Batteries — 5](https://bargainpostbox.co.uk/i/tlJSWqY6Dt9UGmJ-1FmHjn1HeKz8qzCfVLnEmBhcITQ3XNIyKHbeomNPYGZlmFV_1j0sfS6fWEt5lEybN-vQftH7sZFQvEhUxNkkx-oO4eNfryuM0EIbDg8r.jpg)

![SEESII CG120 Cordless Electric Caulk Gun, 10 oz, 2 x 2.0Ah Batteries — 6](https://bargainpostbox.co.uk/i/GsJurfrgvn3-x-uOwOyzgLzUj4-9XAkV_SPzSKkbzkKrdubRJXQoSQcv6jm2m5UIixv1nsTZPnNP8wTzmfmolp9wdqJMkCl4EI3vJpByoWpjW4UBkJuAQFzl.jpg)

![SEESII CG120 Cordless Electric Caulk Gun, 10 oz, 2 x 2.0Ah Batteries — 7](https://bargainpostbox.co.uk/i/GTj-ZuS3vn_XJYbQ3kR1vkreezxWa0VjLSMxKg3T4eMAr5I7jgkC9CKSRTU_2jzTigOLTvGjAgsNQ4oNR3B_dW0MCxz8qNqaz0Yh0aeO85TNWF3-bfGBJjN8.jpg)