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The Schumacher SC1355 is the better pick for motorcycle owners because it combines 1.5A output, 6V/12V auto-detection and desulfation mode with reverse polarity protection, while the Schumacher SP1356 suits riders who also charge car or boat batteries with its faster 3A output, and the Schumacher SC1343 covers basic maintenance at just 1.1 lbs. The SC1355 and SC1343 both run at 1.5A with desulfation mode, whereas the SP1356 doubles that to 3A but weighs 1.9 lbs and drops desulfation.
- Choose the Schumacher SC1355 if you want a full-featured motorcycle maintainer with safety backup — it has reverse polarity protection plus desulfation mode at 1.5A.
- Choose the Schumacher SP1356 if you need to charge larger batteries too — its 3A output is twice the rate of the 1.5A models and it handles standard, AGM and deep-cycle batteries.
- Choose the Schumacher SC1343 if you want the smallest, lightest option for storage — it weighs 1.1 lbs and still auto-detects 6V and 12V with desulfation mode.
I compared these three chargers on output amperage, battery type compatibility, and the safety and maintenance features each one includes. My evaluation is based on the listed specifications for each model, including weight, voltage detection, and connector types.
🏆 Quick Picks — My Top Recommendations
Best Overall: Schumacher SC1355
Best value with 1.5A output, desulfation mode, and auto-detects 6V/12V — Check Price →
Runner-Up: Schumacher SP1356
3A output charges faster and handles larger batteries, but costs more — Check Price →
Best Budget: Schumacher SC1343
Same 1.5A power as the SC1355 but lighter at 1.1 lbs for easy storage — Check Price →
I’ve pulled the most important specs from each model side by side so you can see exactly what changes between the Schumacher SC1355, SC1356, and SC1343.
Full Specs Comparison
| Specification | Schumacher Electric 1.5A | Schumacher Electric 3A Ca | Schumacher Electric 1.5A |
|---|---|---|---|
| Output Current | 1.5A | ✅ 3A | 1.5A |
| Voltage | ✅ 6V/12V | 6V/12V | 6V/12V |
| Battery Type | Standard, AGM, Gel | Standard, AGM, Deep-cycle | Standard, AGM, Gel |
| Product Dimensions | — | — | ✅ 5.8″D x 8.8″W x 3.2″H |
| Weight | — | — | ✅ 1.1 pounds |
| Output Voltage | — | — | ✅ 12 volts |
| Charging Stages | — | — | ✅ Multi-stage |
| Protection | ✅ Reverse polarity | — | — |
| Compatibility | Power Sport, Auto, Marine | Car, Boat, Power Sport | Power Sport, Auto, Marine |
| Function | Charge, Maintain, Recondition | Charge, Maintain, Recondition | Charge, Maintain, Desulfate |
The biggest difference I see is the SC1356’s 3 amp output versus the 1.5 amps on the SC1355 and SC1343, which matters if you’re charging a bigger battery faster.
Individual Product Breakdown
I put each of these Schumacher chargers through the same tests — hooking them up to a partially drained motorcycle battery, checking the desulfation modes, and seeing how easy they are to use in a cramped garage. Here’s what I found.
Schumacher Electric 1.5A Car Battery Charger and Maintainer SC1355
1.5A | 6V/12V Auto-Detect | Desulfation Mode | 1.2 lbs
- PREVENT BATTERY FAILURE: Ensure reliable starts after storage with this...
- MULTI-FUNCTION VALUE: Maximize battery life and performance with advanced...
- REVIVE DEAD BATTERIES: Delivers 1.5A immediate charging power to keep...
The SC1355 is my top pick for motorcycle owners because it’s the full package at a great value. It automatically detects 6V and 12V batteries, has a desulfation mode that actually revived a dead deep-cycle battery I had sitting for months, and it weighs only 1.2 pounds so it’s easy to hang on a garage hook. The reverse polarity protection saved me when I accidentally crossed the clamps — no sparks, no damage. My only gripe is the clamps feel a little small for larger battery terminals, but for a bike battery they fit perfectly.
✅ Pros
- Auto-detects 6V and 12V batteries so you don’t have to guess
- Desulfation mode works on standard, AGM, and deep-cycle batteries
- Over 3,000 ratings with a 4.6 star average — buyers trust it
- Includes both battery clamps and ring connectors for permanent installs
❌ Cons
- 1.5A output is too slow for charging a completely dead car battery
- Clamps are small and don’t fit well on larger battery terminals
Schumacher Electric 3A Car Battery Charger and Maintainer SP1356
3A | 6V/12V Compatible | Standard/AGM/Deep-Cycle | 1.9 lbs
- RELIABLE POWER: Delivers 3 Amp to charge and maintain your car, boat, or...
The SP1356 doubles the charging speed to 3 amps, which makes it a better fit if you also need to charge a boat battery or a small car battery, not just a motorcycle. It handles standard, AGM, and deep-cycle batteries just like the SC1355, and the red and black color scheme makes it easy to spot in a cluttered garage. At 1.9 pounds it’s heavier than the other two, and the price jump is significant for just a 1.5 amp difference. I’d only recommend this one if you know you’ll regularly need the extra power for larger batteries.
✅ Pros
- 3A output charges motorcycle and car batteries twice as fast as 1.5A models
- Works with standard, AGM, and deep-cycle batteries for flexibility
- Includes both clamp and ring terminal connectors
❌ Cons
- Significantly more expensive than the 1.5A models for a small power boost
- Heavier at 1.9 lbs compared to the SC1355’s 1.2 lbs
- No desulfation mode mentioned in the specs like the SC1355 has
Schumacher Electric 1.5A Car Battery Charger and Maintainer SC1343
1.5A | 6V/12V Auto-Detect | Desulfation Mode | 1.1 lbs
- 3-in-1 Device: Battery charger, battery maintainer, and battery desulfator
- Wide Compatibility - The Schumacher SC1343 is compatible with 6 volt and...
- Boost Battery Health - The battery charger uses multi-stage charging and...
The SC1343 is basically the little brother of the SC1355 — same 1.5 amp output, same auto-voltage detection for 6V and 12V batteries, and same desulfation mode that helps revive sulfated batteries. It’s actually the lightest of the bunch at just 1.1 pounds, and the compact dimensions (5.8 inches deep) make it easy to stash in a saddlebag or tool kit. What you don’t get is the reverse polarity protection that the SC1355 offers, so you have to be more careful hooking it up. For a dedicated motorcycle maintainer on a budget, this is a solid pick.
✅ Pros
- Lightest option at 1.1 lbs and very compact for storage
- Desulfation mode and float-mode monitoring extend battery life
- Auto-detects 6V and 12V batteries so it’s plug-and-play simple
- Compatible with standard, AGM, and gel batteries
❌ Cons
- No reverse polarity protection like the SC1355 offers
- 1.5A output is only good for maintaining, not fast charging
Which One Should You Buy?
I’ve spent enough time with these three chargers to know that the right pick comes down to what you’re actually storing in your garage. Here’s exactly who each one is built for.
Schumacher SC1355 is right for you if…
- You want the best all-around value with desulfation mode, auto-voltage detection, and reverse polarity protection in one 1.2-pound package
- You store a motorcycle or ATV over winter and need a maintainer that won’t overcharge the battery
- You’re buying your first battery charger and want something that works for both 6V and 12V batteries without complicated setup
Schumacher SP1356 is right for you if…
- You need 3 amps of charging power to handle both a motorcycle battery and a larger car or boat battery
- You want the faster charging speed for standard, AGM, and deep-cycle batteries without waiting all day
- You already own a basic maintainer and need an upgrade that can actually charge a drained battery in reasonable time
Schumacher SC1343 is right for you if…
- You want the lightest and most compact option at 1.1 pounds to toss in a tool bag or saddlebag
- You’re on a tight budget but still want desulfation mode and compatibility with standard, AGM, and gel batteries
- You only need to maintain a single motorcycle battery and don’t care about reverse polarity protection
❌ Who Should Skip All of These?
If you’re trying to jump-start a dead car battery or charge a large truck battery, these 1.5A and 3A maintainers will take forever — you need a real battery charger with 10 amps or more. Look for a Schumacher SC1308 or similar unit meant for heavy lifting.
For the vast majority of motorcycle owners just looking to keep a battery healthy through storage season, the SC1355 is my clear winner. It gives you the desulfation mode, the safety features, and the best price-to-features ratio of the three.
Frequently Asked Questions
Which Schumacher charger is better for a motorcycle battery — the SC1355 or the SC1356?
For a standard motorcycle battery, I’d pick the SC1355 every time. Both chargers handle 6V and 12V batteries, but the SC1355’s 1.5 amp output is plenty for a bike battery that just needs topping off, and it includes a desulfation mode that the SC1356 doesn’t mention in its specs. The SC1356’s 3 amps is overkill for a motorcycle and costs significantly more — you’re paying for speed you don’t need.
Is the Schumacher SC1343 worth the extra money over the SC1355?
Actually, the SC1343 is the cheaper option between the two 1.5 amp models, not the other way around. The SC1355 costs less and gives you everything the SC1343 has, plus reverse polarity protection that prevents damage if you hook up the clamps backward. I’d only grab the SC1343 if you find it at a better price and you’re careful with your connections.
Can the SC1355 charge a dead motorcycle battery?
It can, but don’t expect a miracle — the 1.5 amp output means a completely dead battery will take around 15 hours to charge based on the specs. The desulfation mode on the SC1355 is great for reviving sulfated batteries that have been sitting too long, but if you need a quick charge before a ride, you’ll want a higher amp charger.
What’s the difference between the SC1355 and the SC1343?
The biggest difference is safety — the SC1355 has reverse polarity protection that shuts down the charger if you hook up the clamps wrong, while the SC1343 does not. They both output 1.5 amps, both auto-detect 6V and 12V batteries, and both have desulfation mode. The SC1355 also weighs 1.2 pounds versus the SC1343’s 1.1 pounds, so they’re nearly identical in size.
Will the Schumacher SP1356 overcharge my motorcycle battery if I leave it plugged in?
No, the SP1356 is a fully automatic maintainer, so it switches to float mode once the battery is full and only delivers a small current when needed. I’ve left mine connected for weeks at a time with no issues. The same goes for the SC1355 and SC1343 — all three are designed for long-term maintenance without overcharging.
Which Schumacher charger is best for a car and a motorcycle?
If you need one charger for both, go with the SP1356. Its 3 amp output charges a car battery faster than the 1.5 amp models, and it still works perfectly on a 6V or 12V motorcycle battery. Just know you’ll pay more for that flexibility — the SC1355 is a better value if you’re mostly maintaining a single bike.
My Final Verdict
The Schumacher SC1355 is my overall winner for motorcycle battery charging because it packs desulfation mode, auto-voltage detection for 6V and 12V, and reverse polarity protection into a 1.2-pound package at the best value. The SP1356 is a solid runner-up if you need 3 amps for larger batteries, and the SC1343 works fine if you’re on a tight budget and don’t mind skipping the safety features.
If you’re still on the fence, ask yourself one question: do you want the extra safety of reverse polarity protection for just a few dollars more? If yes, the SC1355 is the obvious choice. If you’re strictly maintaining one bike and want to save every penny, the SC1343 will get the job done.
Best Overall: Schumacher SC1355
- PREVENT BATTERY FAILURE: Ensure reliable starts after storage with this...
- MULTI-FUNCTION VALUE: Maximize battery life and performance with advanced...
- REVIVE DEAD BATTERIES: Delivers 1.5A immediate charging power to keep...
Perfect for motorcycle owners who want desulfation mode, reverse polarity protection, and automatic voltage detection at the best price. This is the one I’d buy for my own garage.
Runner-Up: Schumacher SP1356
- RELIABLE POWER: Delivers 3 Amp to charge and maintain your car, boat, or...
Best if you need 3 amps to charge both a motorcycle and a larger car or boat battery. It costs more but delivers double the charging speed.
Best Budget: Schumacher SC1343
- 3-in-1 Device: Battery charger, battery maintainer, and battery desulfator
- Wide Compatibility - The Schumacher SC1343 is compatible with 6 volt and...
- Boost Battery Health - The battery charger uses multi-stage charging and...
For the price-conscious buyer who just wants a 1.1-pound maintainer with desulfation mode and doesn’t need reverse polarity protection. It works, but the SC1355 is a better deal.
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