Description
Comparison points and tradeoffs
When comparing Ampper Side Post Battery Disconnect Switch 12V – 48V, Marine Battery Switch Disconnect Power Cut Off W/Removable Knob for Car, RV and Boat (On/Off) with other Battery Switches options, use this source-backed detail as the primary discriminator: Specification: used for DC 12 – 48 V systems, ON/OFF 2 positions, 300 A continuous at DC 12V, 500 A intermittent at DC 12V, 1300 A momentary at DC 12V.
Use this second fact to evaluate the tradeoff: 8, Compatible with GM side post batteries or other batteries which have a 3/8″ post terminal, also used for electrical equipment. A third point to compare across alternatives is: Heavy Duty: ABS plastic housing, durable made for safety use, equiped with 2 pcs SAE 3/8″-16 bolts compatible with standard GM side post batteries.
Alternative-selection boundary
Choose an alternative when its stated identifiers, application, package, or specifications better match the requirement; no unverified competitor claim is introduced here.
Complete source-backed product details
| Operation Mode | manual |
|---|---|
| Operating Voltage | 48 Volts (DC) |
| Contact Type | Normally Open |
| Connector Type | Sae 3/8″-16 Bolts |
| Brand | Ampper |
| Terminal | Screw |
| Item dimensions L x W x H | 5 x 1.8 x 2 inches |
| Circuit Type | 1-way |
| Contact Material | Copper, Brass |
| Number of Positions | 2 |
| Control Method | Touch |
| Color | Removable Knob |
| Manufacturer | Ampper |
| Model | Am-CBS02B |
| Item Weight | 6 ounces |
| Product Dimensions | 5 x 1.8 x 2 inches |
| Is Discontinued By Manufacturer | No |
| Manufacturer Part Number | Am-CBS02B |
| Special Features | ABS plastic housing, durable made for safety use, compatible with standard GM side post batteries, Direct fit and no modifications, hook up to SIDE post battery directly, Eliminate any power draw from the battery when vehicle or boat is not in use, Removable knob type key, Used for DC 12 – 48 V systems, isolate and secure the electrical system easily |
Ampper side post battery disconnect switch, 12-48 V battery master switch disconnect isolator W/ removable knob for car, vehicle, RV and boat
Specifications:
1, Removable knob type key.
2, Direct fit and no modifications, hook up to SIDE post battery directly.
3, Do not need additional battery cables or lugs, isolate and secure the electrical system easily.
4, Used for DC 12 – 48 V systems, On/Off 2 positions.
5, 300 A continuous at DC 12V, 500 A intermittent at DC 12V, 1300 A momentary at DC 12V.
6, ABS plastic housing, durable made for safety use.
7, Equiped with 2 pcs SAE 3/8″-16 bolts compatible with standard GM side post batteries.
8, Compatible with GM side post batteries or other batteries which have a 3/8″ post terminal, also used for electrical equipment.
9, Can stand alone or be locked together with other switch.
10, Eliminate any power draw from the battery when vehicle or boat is not in use.
11, Disconnects the battery safely.
12, Widely used for car, vehicle, Rv and boat, also electrical equipment’s switch.
Complete kits includes:
1 x battery switch
2 pcs SAE 3/8″-16 bolts.
Source product highlights
About this item
- Convenience: Removable knob type key, direct fit and no modifications, hook up to SIDE post battery directly, do not need additional battery cables or lugs, isolate and secure the electrical system easily.
- Specification: used for DC 12 – 48 V systems, ON/OFF 2 positions, 300 A continuous at DC 12V, 500 A intermittent at DC 12V, 1300 A momentary at DC 12V.
- Heavy Duty: ABS plastic housing, durable made for safety use, equiped with 2 pcs SAE 3/8″-16 bolts compatible with standard GM side post batteries.
- Compatible with GM side post batteries or other batteries which have a 3/8″ post terminal, also used for electrical equipment. Can stand alone or be locked together with other switch.
- Purpose: eliminate any power draw from the battery when vehicle or boat is not in use, disconnects the battery safely. Widely used for car, vehicle, Rv and boat, also electrical equipment’s switch.




Salt Lake City –
The design is fairly straightforward and easy to install. I had to install it over the top of the battery given the length of the assembly even when adjusted to minimize the length. I haven’t had a chance to see how well it works but should know when I try to start up my car sitting in storage