TowerTop TP108MB 25A Smart Battery Charger
- 2, 10 and 25 amp charge rates
- 12 volt AGM, gel, standard and deep cycle batteries
- Engine start mode listed
- Auto desulfator, battery repair and winter mode
- 120 volt AC input, NEMA 1-15 (Type A) plug
- 7.68 x 10.04 x 4.92 inches
- 18 month warranty, BC, ETL and FCC listed
Last refreshed Sep 7, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A multi-rate smart charger with a starting function and repair features for lead-acid batteries. The spec table has odd entries, such as the amperage and charge time, so confirm the real ratings in the manual.
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ASIN: B07QPSNZPPModel: TP108MBCategory: Car Battery Chargers
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Overview
TowerTop builds this smart charger and maintainer with three charge rates and an engine start mode, plus desulfator, repair and winter settings.
Three rates let one unit handle a gentle top-up or a faster charge, and the starting function adds roadside use. The limitation is unclear data, because several spec entries do not line up with the title.
Who it's for
Owners of cars and light trucks with lead-acid batteries who want slow and fast options in one box suit it. People with lithium batteries, or who want clear charge-time figures, should check the manual first.
Pros and cons
- Three charge rates
- Engine start mode listed
- Desulfator and repair modes
- AGM, gel and deep cycle supported
- Spec entries conflict with the title
- Lithium batteries not mentioned
Performance notes
A charger's rate sets how quickly current refills the battery: the low rate maintains and the high rate recovers. Smart control reduces current as voltage rises to avoid overcharging, and desulfation modes aim to loosen sulfate build-up. The engine start mode supplies a short burst of current, which the listing does not quantify clearly.
Specifications
| Brand | TowerTop |
|---|---|
| Model | TP108MB |
| Dimensions & fit | |
| Item Dimensions D x W x H | 7.68 x 10.04 x 4.92 inches |
| Capacity & performance | |
| Output Voltage | 12 volts |
| Power & efficiency | |
| Amperage | 2 / 10 / 25 A charge rates (spec table lists 800 A) |
| Battery Charge Time | 120 minutes |
| Input Voltage | 120 volts AC |
| Compatibility & installation | |
| Compatible Devices | AGM, deep cycle, gel, standard |
| Warranty & support | |
| Warranty Description | 18-month warranty |
| Other details | |
| Number of Ports | 1 |
| Connector Type Used on Cable | NEMA 1-15 (Type A) and battery clamps |
| Specification Met | BC, ETL, FCC |
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Frequently asked questions
Can I leave the TowerTop charger connected over winter?
The title names a fully automatic maintainer and a winter mode, but connection time guidance is not given, so follow the manual.
Is the TowerTop TP108MB a jump starter?
No. It lists an engine start mode, but it is a plug-in charger that needs AC power.