The Cefito 48V 20Ah folding ebike battery is a 960Wh replacement battery for folding electric bikes. The specs check the standard boxes: 30A BMS, 48V, 20Ah, folding form factor. There are two things worth knowing upfront. First, the included charger is rated at 2A, which is slow for a 20Ah pack. Second, there's only one Amazon review so far. A single 5-star review is encouraging but isn't much data to build confidence on.
For folding bike replacement batteries, the physical dimensions matter as much as the electrical specs. At 14.4 x 5.1 x 3.4 inches, this falls in the typical range for folding bike frame cavity batteries, but you'll want to measure your existing battery to confirm.
Specs and the Charger Situation
The basics: 48V nominal, 20Ah capacity, 960 watt-hours. The BMS is rated 30A continuous, covering motors from 250W through 1000W at 48V. Grade-A lithium-ion cells are claimed with a 1000+ cycle lifespan.
The 2A charger issue
The included charger is rated at 54.6V 2A. For a 20Ah battery, 2A charging means roughly 10-12 hours from empty. That's not a fast charge by any reasonable measure, and calling it a "fast charger" would be generous. If you need the battery charged in under 5 hours, a third-party 5A charger rated for 48V lithium-ion chemistry (54.6V full charge) would roughly halve that time.
The practical impact depends on your usage pattern. If you charge overnight, 10-12 hours is fine and you wake up to a full battery. If you need to top up during the day between rides, the slow charge rate becomes a real limitation.
Physical specs
Dimensions are 14.4 x 5.1 x 3.4 inches. This is the measurement to confirm against your bike's battery cavity. The folding battery form factor is specifically designed to fit in the frame section of folding bikes, not to mount externally or replace a downtube or rear rack battery.
Form Factor and Compatibility
Folding ebike battery compatibility is tighter than external box battery compatibility. The battery has to physically fit the frame cavity, which means the dimensions, connector position, and connector type all need to match your specific bike.
The 14.4 x 5.1 x 3.4 inch dimensions are in the range used by a number of Chinese-manufactured folding bikes. Common brands in this battery size range include various Fiido, Ancheer, and generic folding bike models. But "in the range" isn't the same as a confirmed fit, so measuring your existing battery is the only reliable way to confirm compatibility.
Motor compatibility is 250W through 1000W at 48V, which covers the full range of typical folding ebike hub motors. The 30A BMS provides adequate overhead for these motors without issue.
Real-World Range
At 960Wh on a folding bike, expect somewhere in the 20-35 mile range in typical real-world conditions. The actual number depends heavily on rider weight, terrain, assist level, and speed. Lighter riders on flat urban terrain using moderate assist can push closer to 35 miles. Heavier riders with hilly routes or regular throttle use should plan for 20-25 miles.
For daily urban commutes under 15-20 miles round trip, 960Wh is more than adequate. For longer rides or cargo use, either confirm you can charge mid-route or consider whether a higher-capacity option makes sense.
What Amazon Reviewers Are Saying
There is one review at 5.0 stars. That's almost no data. The single reviewer was satisfied, but one review doesn't establish a reliability track record or identify potential compatibility issues across different bike models.
Given the single review and the relatively higher price compared to competitors with more established review records, it's worth comparing alternatives before committing. Check current reviews and pricing on Amazon since the review count may have grown since this was written.
Who Should Buy This
The Cefito 48V 20Ah folding battery is worth considering if the 14.4 x 5.1 x 3.4 inch dimensions match your bike and you've confirmed the connector type. The specs are standard for this tier and the 960Wh capacity is appropriate for typical folding bike use.
The 2A charger is a genuine limitation if fast charging matters to you, and the minimal review record means you're taking on more uncertainty than with a battery backed by dozens of reviews. Compare it against the battery comparison table filtered for folding 48V 20Ah packs to see what else has more reviews at similar dimensions.
Browse our ebike battery reviews for more options with established review records. If you want to browse other folding 48V 20Ah options, search 48V 20Ah folding ebike batteries on Amazon and compare review counts and pricing across the available options.
Frequently Asked Questions
Why is the 2A charger a problem? A 2A charger on a 20Ah battery takes 10-12 hours for a full charge from empty. For overnight charging this is fine, but for anyone who needs to charge between rides during the day, the slow rate is inconvenient. A third-party 5A charger rated for 48V lithium-ion (54.6V full charge) cuts that to about 4-5 hours.
Will the 14.4 x 5.1 x 3.4 inch dimensions fit my folding bike? Only if your bike's battery cavity matches those dimensions. Measure your existing battery or look up the spec for your specific folding bike model. Don't rely on brand name alone since even the same brand can have different battery sizes across models.
What connector does this use? The specific connector type isn't prominently listed. Confirm with the seller before ordering if your bike requires a specific plug type like XT60 or a proprietary connector. Connector compatibility on folding batteries is non-negotiable.
Is one review enough to buy with confidence? That's a judgment call. One 5-star review is a positive signal but very limited data. If the price is competitive and the dimensions match your bike, the risk is moderate. If you can wait for more reviews to accumulate, that reduces uncertainty. Alternatively, look at competing folding batteries with more reviews in the comparison table.
Is 960Wh enough range for my folding bike? For most urban and suburban folding bike riders, yes. 960Wh delivers 20-35 miles of real-world range on a folding bike under typical conditions. For longer routes or cargo use, consider whether you want a higher-capacity option.
Can I use a different charger to speed up charging? Yes. A higher-amperage charger rated for 48V lithium-ion chemistry (54.6V full charge voltage) will charge faster than the included 2A unit. Make sure any third-party charger is specifically rated for 48V lithium-ion, not LiFePO4, which has a different full-charge voltage.
What's the best way to store this battery when not riding? For extended storage, charge to around 50-60% rather than leaving it at 100% or near empty. Lithium-ion cells degrade faster when stored at full charge over long periods. Keep the battery in a cool, dry place away from direct sunlight and temperature extremes. If you're not riding for more than a few weeks, partial storage charge is the better option. When you're ready to ride again, top it off fully before heading out.
Does the Cefito battery work with any 48V folding ebike? Not necessarily. The physical dimensions must match your bike's battery cavity. Cefito and Fiido, Ancheer, and similar brands may share compatible battery slots in some models, but this varies across production runs and model years. Check the 14.4 x 5.1 x 3.4 inch dimensions against your bike and confirm the connector type before ordering.