Battery Tender 800 Battery Charger
- 800 mA charge output at 12 volts
- 12V batteries on ATVs, watercraft, motorcycles and boats
- 100 to 240 VAC input, 50/60 Hz
- Fully waterproof, interior encapsulated in epoxy resin
- Alligator clips and ring terminals as connectors
- 1.1 pounds, mountable housing
- DOE, ETL and FCC specifications met
Last refreshed Sep 7, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A sensible maintainer for motorcycle, ATV and boat batteries stored outdoors, since the sealed case shrugs off water. The low output is meant for upkeep, so expect slow recharges on larger batteries.
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ASIN: B000CITKCEModel: 022-0150-DL-WHCategory: Car Battery Chargers
Overview
An onboard IC chip constantly monitors a small battery, charges it with constant current and then holds it at maintenance level. The electronics are fully encapsulated in an insulating epoxy resin, so the unit can be mounted outdoors and still works when submerged.
Waterproof sealing is the reason to choose it: a boat dock, an open trailer or a wet shed is no threat to the potted circuit. Charging current is modest, so treat it as a maintainer first and a recharger second.
Who it's for
Owners of motorcycles, ATVs, personal watercraft and boats that sit idle between uses get the most from it, mounted near the battery and left connected through the off season. Drivers hunting for a fast charger or a jump starter should shop for a different tool.
Pros and cons
- Encapsulated circuit resists water, shock and vibration
- Automatic monitor, charge and maintain cycle
- Universal input voltage for use abroad
- Alligator clip and ring terminal connectors
- Low output current for large batteries
- Charge time not listed
- Listing gives conflicting input voltage figures
Performance notes
Charging speed is governed by the small constant current output, so a battery's capacity and how far it is drained decide how long recovery takes. The IC chip decides when to switch from charging to maintenance, so it can stay connected for long periods. The epoxy potting is thermally conductive, moving heat away from the components while sealing out moisture.
Specifications
| Brand | Battery Tender |
|---|---|
| Model | 022-0150-DL-WH |
| Dimensions & fit | |
| Item weight | 1.1 pounds |
| Item Dimensions D x W x H | 2.7 × 4.3 × 1.5 inches |
| Capacity & performance | |
| Output Voltage | 12 volts |
| Power & efficiency | |
| Amperage | 0.8 amps |
| Input Voltage | 100 volts |
| Construction & materials | |
| Color | Black/Green |
| Other details | |
| Number of Ports | 2 |
| Connector Type Used on Cable | Alligator Clips And Ring Terminals |
| Specification Met | DOE, ETL, FCC |
| Water resistance | Fully waterproof, epoxy encapsulated interior |
Frequently asked questions
How big is the Battery Tender 800 charger?
The case measures 2.75 by 4.35 by 1.5 inches and weighs 1.1 pounds, about the size of a standard computer mouse. It is mountable, so it can be fixed close to the battery.
Can the Battery Tender 800 stay outside in the rain?
Yes. The interior is fully encapsulated in an electrically insulating epoxy resin, and the listing says it continues to monitor and charge even when submersed in water.
Will the Battery Tender 800 work on overseas power?
The description lists universal input of 100 to 240 VAC at 50/60 Hz, while the spec table shows 120 volts. Confirm with Battery Tender before relying on it abroad.
Is the Battery Tender 800 a jump starter or fast charger?
No. It is an 800 mA charger and maintainer for 12V batteries. It brings a battery up slowly and then maintains it; it cannot start a vehicle.