The SL1’s magnesium body deliberately omits any USB port, DC coupler input, or internal charge circuit for the LP-E12 cell, so no built-in charging method exists. The battery has to leave the grip and sit in the dedicated Canon LC-E12 wall charger, and applying power through HDMI or the remote terminal will short the motherboard rather than top off the cell.
This guide covers what the SL1’s lithium-ion LP-E12 actually needs, every charging path that works, and the workarounds that look tempting but will quietly kill your gear.
Why the SL1 Cannot Charge Through the Body
Flip open the left-side port cover on the SL1 and you’ll find HDMI out and a remote terminal, neither of which carries current to the battery. Open the right-side cover and you’ll see a microphone jack and an A/V digital port that follow the same rule.
Canon released the SL1 in 2013, four years before the company began adding USB-C PD charging to entry-level bodies like the EOS Rebel SL3 and the EOS R100, so the LP-E12 cell has to come out of the bottom compartment before it can accept any charge at all.
Any tutorial walking you through “charging the SL1 with a USB cable” describes a process that physically cannot happen on this body.
Warning: Sticking a homemade cable into the SL1’s HDMI or remote port and applying voltage can short the motherboard and brick the camera. There is no user-serviceable workaround for missing USB charging on this generation.
That hard rule shapes every decision below, from the battery model you buy to the chargers worth considering.
Identifying the LP-E12 Battery and Its Charging Specs
Pop open the SL1’s battery door and the cell inside is the Canon LP-E12, a 7.2 V lithium-ion pack rated at roughly 875 mAh, which works out to about 6.3 Wh of stored energy. That modest capacity is the trade-off for the camera’s pocketable body, and it explains why most shooters carry a spare cell on long shoot days.
Specs at a Glance
| Specification | Value |
|---|---|
| Model | Canon LP-E12 |
| Chemistry | Lithium-ion |
| Voltage | 7.2 V nominal |
| Capacity | ~875 mAh (≈6.3 Wh) |
| Compatible camera | Canon EOS Rebel SL1 / EOS 100D, EOS M, EOS M2, EOS M50 (original) |
| Official charger | Canon LC-E12 (LED-equipped wall charger) |
LP-E12 cells look similar to the larger LP-E17 used in the SL2 and the chunky LP-E6N found in the 5D Mark III and EOS R bodies, but the contacts and voltage profiles are not interchangeable. Grabbing an LP-E17 by accident and forcing it into the SL1’s compartment will not seat, and the pressure can bend the orange battery latch inside the grip.
The Safe Step-by-Step Charging Procedure
Charging the LP-E12 takes less than two minutes of hands-on time, and the LC-E12 charger handles the rest of the cycle on its own.
What to Do, in Order
- Power down the SL1 before opening the battery door so the contacts stay safe.
- Open the battery compartment on the bottom of the grip and slide the orange release latch sideways.
- Remove the LP-E12 with a clean, dry grip and set the camera aside on a dust-free surface.
- Seat the cell in the LC-E12 until the small plastic tab locks it flat against the charger’s contacts.
- Plug the LC-E12 into a standard wall outlet and watch for an orange LED to light up.
- Wait for the LED to turn green, signaling a full top-up, usually around two hours from empty.
- Reinsert the battery into the camera and close the door until the latch clicks.
Tip: A 20-minute partial top-off between shoots is fine for lithium-ion chemistry and will not shorten the cell’s lifespan the way nickel-cadmium batteries used to degrade from memory effect.
That orange-to-green color transition is the LC-E12’s quiet but reliable way of saying the cell is ready for another 300–400 still frames or about 60 minutes of continuous video, depending on how often you switch into Live View.
OEM Versus Third-Party Charger Options
Canon’s own LC-E12 is the safest pick for your camera and your wallet, but it is not the only LP-E12 charger on the market. Knowing the trade-offs keeps your cell healthy for years instead of months.
Charger Comparison
| Charger Type | Pros | Cons |
|---|---|---|
| Canon LC-E12 (OEM) | Matches Canon’s voltage and firmware-friendly communication; orange-to-green LED; compact fold-out plug | Costs roughly 2–3x more than third-party units |
| Reputable third-party (Watson, Neewer, BM Premium) | Often under $20, sometimes includes a car adapter or spare battery bundle | Quality varies; some skip the over-temperature cutoff the OEM charger provides |
| No-name bargain chargers | Cheapest possible price, sometimes under $8 | Often missing CE or UL marks, can overheat a healthy LP-E12 in a sealed outlet |
Reputable third-party chargers from brands like Watson or Neewer behave almost identically to the LC-E12 in real-world use, and they often bundle a second LP-E12 so your camera stays shooting through the day. The danger zone starts with chargers sold under vague brand names that lack CE or UL safety marks, where a faulty charge controller can swell the cell or trigger thermal runaway.
If the listing has no certifications and no return policy, treat it as a risk to your battery, not a bargain.
Travel and On-the-Go Charging Workarounds
Road trips, international flights, and multi-day hikes all change the math, because the SL1 still cannot charge its own battery and you still need power somewhere along the route. A handful of travel-friendly options actually deliver.
Charging Paths That Work Away From Home
- 12 V car adapter for the LC-E12: Plugs into a cigarette lighter and tops up the LP-E12 between drive segments.
- Region-appropriate plug adapter: Lets the standard LC-E12 work in Europe, the UK, or Asia without a step-up voltage converter.
- Two LP-E12 cells, half-charged in a hard case: Avoids TSA scrutiny, prevents deep-discharge damage, and keeps you shooting when a wall outlet is nowhere nearby.
- Portable USB power bank with a dummy-battery DC coupler: A common setup for cameras that accept it, but the SL1 does not accept a DC coupler, so this option will not power the body.
For multi-day trips, packing two LP-E12 cells stored at about 40–60 percent charge in a hard shell case is the most reliable insurance. Deep-discharge damage hits lithium-ion cells hardest when they sit empty for weeks, so storing them half-charged is the quiet habit that keeps a battery alive between assignments.
Extending LP-E12 Lifespan With a Simple Charging Routine
How you top off the LP-E12 matters as much as which charger you use. A predictable routine keeps the cell out of the deep-discharge zone where lithium-ion damage begins.
Daily Charging Habits Worth Keeping
- Top off before each major shoot rather than running the cell flat, because lithium-ion prefers shallow discharge cycles.
- Avoid leaving the LP-E12 on the LC-E12 overnight once the LED turns green, since the charger holds a maintenance float that adds mild wear over months.
- Store spare cells at roughly 40–60 percent in a cool, dry place if the camera will sit unused for more than two weeks.
- Charge at room temperature between 10 °C and 30 °C (50–86 °F) to keep the protection circuit happy.
- Pull the cell from the camera during long storage periods so a slow parasitic drain does not push the voltage below the safe cutoff.
Following those five habits typically gets a Canon LP-E12 to 300–500 full charge cycles before capacity noticeably fades, which lines up with the 2–3 year replacement window most SL1 shooters experience.
Troubleshooting an LP-E12 That Will Not Charge
A dead-looking LP-E12 is more often a dirty contact, a cold cell, or a counterfeit than a failed battery. Running through the obvious fixes first saves the cost of a replacement you don’t actually need.
Quick Diagnostic Checklist
- Clean the gold contacts: Wipe both the battery and the LC-E12 with a dry cotton swab to remove oxidation, the single most common silent failure.
- Check the ambient temperature: Lithium-ion refuses to charge below about 10 °C (50 °F) or above roughly 30 °C (86 °F).
- Test with a different outlet: Swap to a known-good wall socket or power strip to rule out a tripped breaker.
- Try a second LC-E12: Move the cell to another charger, or try a known-good battery in the suspect LC-E12, to isolate whether the fault is the cell or the charger.
- Inspect for swelling or damage: A bulging LP-E12 has failed internally and needs safe disposal, never charging.
- Verify the cell is genuine: Counterfeit LP-E12 packs often report full charge in the camera’s battery indicator, then collapse within a few dozen shots.
If the LED never illuminates after these steps, the failure is almost always either the LC-E12’s charge controller or the LP-E12’s protection circuit, both of which are cheaper to replace than the camera itself. A single replacement LC-E12 typically runs well under the cost of a service-center estimate, and a fresh third-party LP-E12 from a reputable seller gives you a working spare for the next outing.
Bottom Line
The Canon SL1 cannot charge its battery in the camera, period. Pull the LP-E12, seat it in an LC-E12 wall charger or a trusted third-party equivalent, and let the orange-to-green LED confirm a full top-up in about two hours. Treat any so-called USB charging hack as a guaranteed way to destroy a camera body, a battery, or both.
FAQ
Can the Canon SL1 charge its battery while inside the camera?
No. The Canon SL1 has no USB port and no internal charge circuit, so the LP-E12 must be removed and placed in an external charger like the LC-E12. Any tutorial suggesting otherwise will damage the camera.
Does the Canon Rebel SL1 support USB charging?
No. Canon added USB charging to later models like the SL3 and the EOS R series, but the SL1 predates that feature. The side port flap only carries HDMI output and a microphone input.
What type of battery does the Canon SL1 use?
The Canon SL1 uses the Canon LP-E12, a 7.2 V lithium-ion pack rated at about 875 mAh (≈6.3 Wh). The same cell also powers the EOS M, EOS M2, and the original EOS M50.
How do you charge a Canon SL1 battery without the official charger?
A reputable LP-E12-compatible unit from a brand like Watson or Neewer will charge the cell safely. Avoid no-name chargers without CE or UL marks, since a faulty charge controller can overheat the battery.
How long does it take to charge a Canon LP-E12 battery?
From a full discharge to a complete top-up, the LC-E12 takes roughly two hours and signals completion by switching its LED from orange to green. A partial top-off of 20–30 minutes is also safe for lithium-ion chemistry.
Can I use a power bank to charge the Canon SL1 battery in camera?
No. The SL1 does not accept a DC coupler, so a power bank cannot feed power into the body. For travel charging, pair the standard LC-E12 charger with a 12 V car adapter or a region-appropriate plug.
