Trickle Chargers for Electric Dirt Bikes: Do You Need One?
Why lithium electric dirt bikes generally don't need a trickle charger the way petrol bikes do — and the storage habits that matter instead.
A trickle charger keeps a battery topped up with a very low current during long periods of storage. They're a near-essential accessory for petrol motorcycles, whose lead-acid batteries self-discharge quickly and can be permanently damaged by sitting flat. For a lithium electric dirt bike, the picture is different — and usually simpler.
Lithium Batteries Barely Self-Discharge
A modern lithium pack loses only a small percentage of its charge per month sitting idle, compared to the rapid drain of a lead-acid battery. That means an electric dirt bike stored for a few weeks generally doesn't need to be connected to anything at all.
The Real Storage Rule: Charge Level, Not Constant Charging
Rather than keeping a lithium pack permanently topped up, the better practice for storage of a month or more is to leave it at roughly 40-60% charge — holding lithium cells at 100% for long periods actually accelerates ageing. See Lithium Battery Care: Charging Habits That Extend Dirt Bike Battery Life for the full detail.
When a Maintenance Charge Does Make Sense
For very long-term storage (several months or more), checking the charge every 6-8 weeks and topping back up to the mid-range if it's dropped is worthwhile. Some riders use a smart charger that can be set to maintain a specific charge level rather than a traditional constant trickle — our Fast Chargers range includes smart chargers with charge monitoring.
What Not to Do
Don't leave a lithium pack fully depleted for months — that's the one storage state that can genuinely harm it. And always use a voltage-matched charger; a trickle charger designed for a 12V lead-acid motorcycle battery is not appropriate for a 60V or 72V lithium dirt bike pack.
Surron Light Bee X (LBX)
The world-famous agile electric trail bike featuring 6kW peak power, 60V 40Ah battery, and forged aluminium alloy frame.
Common Questions
Generally no — lithium batteries self-discharge very slowly, so an electric dirt bike stored for a few weeks doesn't need to be connected to anything. For long-term storage, storing at 40-60% charge matters more than constant charging.
No — a trickle charger built for a 12V lead-acid motorcycle battery is not suitable for a 60V or 72V lithium dirt bike pack. Always use a voltage-matched charger designed for your bike.
Leave the pack at roughly 40-60% charge, keep it out of direct heat, and check it every 6-8 weeks over multi-month storage, topping back up to the mid-range if it has dropped. Avoid leaving it fully charged or fully flat for long periods.