9 Best
40 Amp Battery Chargers
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Product Highlights- Multi-purpose - it is suitable for charging 12v and 24v lead-acid batteries, such as maintenance-free batteries, flooded batteries, gel batteries and lithium batteries. it can also be used to charge various sizes of batteries.
- Fast charging - the charger has a maximum charging current of 20a, which can quickly charge the battery to full capacity in a short time. it is equipped with a charging indicator to display the charging status, and the charging process can be monitored and controlled intelligently.
- Smart and safe - the charger is designed with a variety of protection functions to prevent the battery from overcharge, overdischarge, short circuit, reverse polarity and temperature control. the charger has a built-in fan to dissipate heat and has a wide operating temperature range, allowing it to be used in a variety of environments.
- Lcd digital display - the intelligent charger has a digital lcd display that can accurately display the charging status, voltage, current and battery capacity. the charger has a battery status recognition function, which can automatically identify the battery type and adjust the charging mode.
- Wide compatibility - the charger is compatible with various types of lithium batteries, such as 12v/20ah, 12v/30ah, 12v/40ah, 24v/30ah, 24v/40ah and 24v/50ah. it is also suitable for charging lead-acid batteries with a capacity of 10ah-200ah.
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Product Highlights
- Tough and reliable: designed for outdoor use at any temperature; developed and tested in sweden
- Effective: restores battery life and reconditions flat batteries
- Simple to connect and easy to use: fully automatic, spark free, reverse polarity protected
- Flexible: compatible with many different types of vehicle batteries
- Maintains: ideal for carefree long-term maintenance charging
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Product Highlights
- Do more with genius - designed for 6-volt and 12-volt sealed lead-acid automotive, marine, leisure, deep-cycle and motorbike batteries, including flooded, gel, agm, efb, sla, vrla, start-stop and maintenance-free, plus lithium-ion (lifepo4) batteries.
- Charge flat batteries - charges dead batteries as low as 1-volt. or use the all-new force mode that allows you to take control and manually begin charging dead batteries down to zero volts.
- Beyond maintenance - it's not just a trickle charger, it's an advanced battery charger maintainer. a fully-automatic, worry-free battery charger for everyday use - 24/7 - with zero overcharge.
- Meet the genius10uk - similar to our g7200uk, just better. it's 17% smaller and delivers over 115% more power. it's the all-in-one charging solution - battery charger, battery maintainer, trickle charger, battery conditioner, plus battery desulfator.
- Enjoy precision charging - an integrated thermal sensor detects the ambient temperature and alters the charge to eliminate over-charging in hot climates and under-charging in cold climates.
- Condition your battery - an advanced battery repair and conditioner mode uses slow pulse reconditioner technology to detect battery sulfation and acid stratification to restore lost battery performance for stronger engine starts and extended battery life.
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Product Highlights
- [intelligent mppt charging] ip65 waterproof. the mppt solar intelligent control management system features charging memory to record user charging habits.
- [comprehensive protection measures] engine start battery low-voltage protection. overcharging and short-circuit protection for extended battery lifespan.
- [multi-input efficient charging] eco-worthy dc to dc charger offers unique charging options. this multi-stage, multi-input battery charger can charge various batteries by connecting to the starter battery of a car's alternator, or directly connecting to a solar panel. suitable for agm/gel, lead acid, lithium, and calcium batteries.
- [one-way charging] enhanced safety with isolation for primary and secondary batteries. to prevent power loss from the house battery, we have added one-way charging to prevent reverse charging and power consumption.
- [easy to use] clearly labeled wiring for solar panels, alternator, and battery. indicator lights for normal charging connections, ensuring easy identification of abnormal connections.
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Product Highlights
- The blue smart charger features a microprocessor controlled adaptive battery management, the adaptive feature will automatically optimize the charging process relative to the way the battery is being used
- Also charges li-ion batteries: li-ion batteries are charged with a simple bulk absorption float algorithm
- Victron energy blue smart ip22 12-volt 30 amp 230v with single output is the new professional battery charger with wireless solution to monitor voltage and current, to change settings and to update the charger when new features become available
- High efficiency and also protected against overheating: with up to 94% efficiency, these chargers generate up to four times less heat when compared to the industry standard
- The blue smart ip22 charger can be used on devices in your workshop and on motor or marine vehicles, such as (classic) cars, camper-vans, boats, yachts and motorbikes
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