Why choose SOLISE lithium batteries for your microlight ?

SOLISE offers you a range of starter batteries suitable for microlights, capable of replacing your lead batteries up to 28Ah. These ultra-light batteries offer exceptional power and longevity.

INCOMPARABLE LIGHTNESS 

SOLISE batteries are considerably lighter than traditional lead batteries. On average, they are 6 times lighter, replacing kilos of lead with just a few hundred grams. And because they're so small, they can be fitted in any location, whatever the position of the positive terminal.

OPTIMUM SAFETY

SOLISE batteries are entirely stable in design. However, a major voltage overload can cause the battery to overheat at very high temperatures, potentially igniting the casing. See the safety recommendations and instructions at the end of the page.

EXCEPTIONAL LONGEVITY

The SOLISE lithium battery lasts 5 times longer than the best lead-acid batteries, thanks to its ability to perform many charge/discharge cycles.*

*Laboratory test for full load/discharge at ambient temperature.

EXTENDED LIFE

Ready to use, the SOLISE battery connects in the blink of an eye, with no need for acid filling, resting or prior recharging (if used within 6 months of purchase). It can be installed in any orientation, simplifying installation.

A QUIET WINTER WITHOUT MAINTENANCE

SOLISE lithium batteries can be safely stored over winter without damage. To do this, fully recharge them before storage, and they will remain so for 18 months without any problems.

ULTRA-FAST RECHARGING 

After a normal start-up, the SOLISE battery recharges in less than 60 seconds, guaranteeing a full charge before your machine leave the track. If you're recharging your lithium battery with a charger, it's essential to use one that's compatible with the battery's technology. 

ENVIRONMENTALLY FRIENDLY AND SAFE

SOLISE lithium batteries are not only more durable, but also more environmentally friendly. They emit no gases during charging and discharging and contain no harmful heavy metals, unlike lead, gel or AGM batteries. Lithium batteries are 100% recyclable.

HOW TO CHOOSE A LITHIUM BATTERY FOR AN ULTRALIGHT ? 

To find the battery best suited to your microlight, consult our table of equivalence based on lead batteries. For batteries with a capacity between two models, always choose the larger model. 

If the battery is undersized, it will not be able to start your microlight. This will damage the battery and considerably reduce its lifespan, until it stops working altogether. 

Product reference Lead battery equivalent Peak current Dimensions Weight
BM12003 7Ah 120A 110(L)x28(W)x75(H)mm 370g
BM12005 12Ah 240A 110(L)x55(W)x75(H)mm 740g
BM12007 18Ah 360A 110(L)x80(W)x80(H)mm 1kg
BM12007S 18Ah 360A 145(L)x55(W)x80(H)mm 1kg
BM12009 28Ah 480A 110(L)x110(W)x75(H)mm 1.3kg

RECOMMENDATIONS FOR USE OF YOUR SOLISE LITHIUM STARTER BATTERY 
THE TWO MAIN RISKS FOR MICROLIGHT APPLICATIONS

Battery overheating and smoke : This can happen very rarely if one of the battery cells is severely overcharged. Possible causes include a faulty regulator that no longer regulates properly and sends more than 30V to the battery, a severe imbalance in the battery cells, or an external element heating the battery above 100°C.

Battery almost discharged : This risk arises if the regulator fails. Although this is transparent for the pilot, as the battery takes over and supplies the energy required by the microlight, it does not last indefinitely. Once the battery is discharged, the microlight is left without power. 

TO PROTECT YOURSELF, WE RECOMMEND SEVERAL MEASURES 
Battery capacity indicator

Install a battery voltage monitoring device, preferably with an indication of the remaining battery life. We offer a round indicator showing battery voltage and load level (reference : IND002R). This allows you to monitor the battery and charging system throughout the flight. 

Check the charge before take-off : Make sure the battery is fully load before leaving the runway.

Monitor the battery in flight : The battery must remain fully charged during the flight. If it discharges, this indicates a problem with the regulator, giving you time to find a place to land.

Check the voltage : If the voltage exceeds 15V, the regulator is overcharging the battery and needs to be disconnected.

The cell balancing board

The cell balancing card (reference : ACC009), is used to balance the cells during charging (with the alternator or charger), which extends the life of the battery. We strongly recommend that you add this balancing card, which simply plugs into the small white socket on our lithium starter batteries.

The explosion-proof protective bag

The explosion-proof protective bag (reference : ACC014) is designed to withstand fire. Made from high-quality, flame-retardant materials, it ensures maximum protection when using your lithium battery. Recommended for increased in-flight safety in the event of regulator.

RECOMMENDATIONS TO ENSURE THE LONGEVITY AND SAFETY OF YOUR BATTERY
INSTALL A MANUAL CUT-OFF SYSTEM 

Install a switch in the cockpit to isolate the regulator from the electrical circuit in the event of a malfunction. If the regulator delivers a voltage in excess of 15V, it becomes dangerous for the battery and the flight instruments. This system makes it possible to operate solely on the battery if necessary.

KEEPING THE BATTERY CHARGED 

The starter battery must be kept constantly charged. To prevent it from discharging, disconnect it via its connector or a circuit breaker. Even with the ignition switched off, stray currents can drain a battery in a few months. Unplugged, it can last for several years, losing only 50% of its range.

CHECKING THE CHARGE BEFORE STARTING

Before starting the engine, make sure that the battery is at least 70% charged. If this is not the case, carry out a small charge using a mains charger. This will avoid overloading the alternator/regulator. Most regulators break down due to overheating. A lithium battery will require a lot of energy if it is only lightly loaded, but once it is full, it will no longer require anything from the regulator. On the other hand, if it is completely discharged, recharging can take more than 30 minutes, long enough for the regulator to overheat.

DEEP DISCHARGE MANAGEMENT 

If the battery falls below 8V, it is in deep discharge. Recharge it immediately with a charger suitable for LiFePO4 batteries, in an open area and under constant supervision. If you detect a suspicious smell or noise, stop charging immediately. Check the battery temperature frequently to avoid overheating. In deep discharge, some cells may be affected and fail to regain energy, overcharging the other cells.