The SASNMEO 36V 15Ah battery packs 540 Wh into a small 4-pin form factor at less than 170 dollars. This puts it among the least expensive 36V packs on the market per watt-hour cost, and the cost makes it a viable option for those looking to replace their old OEM battery or get a second pack to increase range.
Specifications and Build Quality
The battery is 36 volts and has a rating of 15 amps for a total of 540 Wh. Capacity-wise, that would be sufficient for a 10 to 20 mile ride home on most hub drive equipped e-bikes based upon the type of assist levels you use and how aggressively you apply the throttle. The 4-pin connector style is also a distinguishing feature. It is one of the most commonly used OEM styles in budget e-bike applications available today. Therefore, it can easily be swapped in for an OEM style battery if you have a bike that currently uses this connector style.
The battery itself is housed in a hard-plastic casing, with a charge display window displaying charge in 25% increments via four LED lights, and the charging port and power switch located on the side of the housing. Weight-wise, the battery is approximately 7 to 8 pounds, similar to what you would expect out of a 15 amp hour battery at this voltage level.
Quality-wise, the build appears to be suitable for the price point. The seams appear to be well-made and the connector terminals are recessed far enough in that they won't inadvertently make contact with each other while installing.
Mounting the battery to your bike is accomplished using a standard rear rack configuration (four bolts, slide-in rail, and a keyed latch).
The case dimensions are compact enough to fit most standard rear racks without overhang. That matters more for looks than function, but it does mean the battery won't interfere with a taillight or cargo bag setup if you keep things tight.
Connector Type and Compatibility
One of the defining specs of this battery is its connector style. It has a 4-pin connector style which is not nearly as ubiquitous as XT60 or Anderson Power Pole connectors commonly seen on mid-to-higher end e-bike batteries. However, it is utilized by many of the budget e-bikes sold directly to consumers by manufacturers such as Amazon direct brands. Therefore, if your current battery utilizes a 4-pin harness, then this is a direct swap. If it does not utilize a 4-pin harness, then you will either need to modify the connector or completely replace the wiring. Something that a person familiar with basic soldering could accomplish.
Budget e-bikes utilizing this connector type include many models from generic Amazon-direct brands at the 36V level. While compatibility is universal in terms of the fact that the voltage and chemistry (lithium-ion) are standard for all e-bike batteries, compatibility in terms of the physical connector style is specific.
BMS and Safety Features
The SASNMEO provides a BMS that supports the capacity of the pack. All standard safety features are provided: overcharge cut-off, over-discharge cut-off, short-circuit detection, and over-current limit protection. The BMS is internal to the pack housing and not field serviceable, which is consistent with most products offered at this price point.
The 4-pin connector supplies both positive and negative power wires and positive and negative charge wires, which allows the BMS to independently monitor charge and discharge activity. There is likely a thermal sensor included within the pack. However, there was no mention made in SASNMEO's product description regarding a temperature cut-off threshold.
Who Should Buy This Battery?
The SASNMEO 36V 15Ah is ideal for replacing an aging OEM battery with another lower-cost OEM-style battery. At under 170 dollars, this product represents some of the lowest-cost options for purchasing an OEM-style replacement 36V battery compared to many brand-name OEM products being sold by online retailers. You can check the current price and details on Amazon to confirm the latest pricing before you buy.
There are two major concerns related to this product offering.
First, since there are only two reviews posted on Amazon regarding this product, there is little social evidence to demonstrate long-term reliability. Customers should consider this product as a value-based purchase. While the initial purchase price is very affordable, there is relatively little history documenting performance over time. As such, if you were considering building an entirely new ebike setup from scratch, you may wish to select a battery product that has received significantly more user feedback.
Second, although this battery has plenty of capacity to provide for shorter daily rides (under 10 miles), when ridden aggressively with full throttle, you can rapidly deplete the capacity of this battery to around 15 to 25 miles. To provide for extended ranges beyond what this single battery provides for on a single charge cycle, customers could consider pairing this with another identical battery or carry an additional portable charger on longer excursions.
See our complete ebike battery comparison chart to compare this with other economy-priced ebike batteries that offer comparable capacities.
Frequently Asked Questions
Which type of connector does this battery have?
A 4-pin connector. Not like XT60 or Anderson Power Pole connectors commonly found on higher-priced batteries. Make sure your e-bike harness matches prior to making your purchase.
Can I run this on a 48V system?
No. This is a 36V nominal battery. Running this on a 48V system will destroy your controller or motor. Only use this battery on 36V systems. Check our ebike battery blog for more tips on choosing the right voltage for your build.
What is the actual distance traveled on a full charge?
Typically 10 to 25 miles depending on motor watts, terrain types, rider weights, and assist levels. For example, on a flat terrain ride using PAS-2 at 250 watts, you will travel farther than on an aggressive throttle-heavy ride at 500 watts with maximum assist enabled on hilly terrain.
Can I adjust BMS settings?
No. The BMS is encapsulated inside the case and cannot be programmed.
Does it ship with a charger?
No. According to SASNMEO's product description, the base price does not include a charger. Please confirm with your vendor or seller or purchase a compatible charger for your 36V li-ion battery separately. Incorrect chargers may damage your pack or create a potential fire hazard.
How do I attach it to my bicycle?
The SASNMEO attaches to your bicycle using a standard rear rack attachment plate with slide-in rail and key lock. You bolt the plate onto your rack, slide the battery onto the plate, and secure using the key lock. If your rack does not fit onto this attachment plate, you may need to obtain an adapter plate or replace your rack altogether.