PRODUCT DETAILS
Charge Mate Pro Lithium 90
Current limited electronic charge relay with high efficiency and reverse current protection
A secondary battery on board requires a dedicated charging solution. The Charge Mate Pro makes it possible to distribute the charger or alternator current effectively between two battery banks such as a starter and a service battery. The Charge Mate Pro connects both batteries during charging and keeps them isolated when discharging. This significantly reduces the risk of a flat starter battery for example.
The Charge Mate Pro offers an additional advantage over mechanical charge relays, by limiting the charge current to the second battery. The primary battery, like a starter battery, is therefore charged with priority. The return current is automatically blocked even when the secondary battery has a higher voltage. An emergency start function is possible by connecting an optional bypass switch to the Charge Master Pro.
A marine application example is the connection of a bow thruster battery to a service battery. The Charge Mate Pro ensures that the service battery is always charged with priority. The blocking of the return current from the bow thruster battery guarantees that the bow battery remains charged while the current limiting also prevents power dips in the onboard electrical network.
The Charge Mate Pro series consists of a 40 Amp and a 90 Amp version, both suitable for charger or alternator applications. The Charge Mate Pro 90 ensures a higher charge current for example when charging Lithium-Ion batteries. It is also perfectly suitable for large automotive alternators up to 180 A and can be used in parallel operation with a 225 Amp alternator to fulfill even higher continuous power demands of your equipment on board.
Charge Mate Pro: for controlled charging from a single source.
Applications:
Leisure and professional marine and mobile applications. An effective solution for high power demand on board and/or the need for prioritized or current limited charging.
Features:
- Charges two battery banks from a single source.
- Electronic charge coupling with very low voltage drop.
- Makes effective dual charging possible.
- Suitable for Lithium Starter Batteries and AGM/GEL/Lithium Service Batteries
- Charge current secondary battery limited to 40A or 90A.
- High system reliability by prioritizing charging of the main battery.
- Unidirectional which blocks return current under all circumstances.
- Prevents power dips in the onboard electrical network.
- Suitable for all kinds of chargers and alternators.
- Monitoring with LED status indication.
- IP65 electronics in a corrosion-resistant casing with aluminum heat sinks.
- Fast and easy installation
General Specifications:
- Monitoring: LED (warnings and status indication)
- Output current: Limited to 90 A
- Number of battery outlets: 2
- Input voltage range: 9-32 V
- Parallel configuration: Yes
- Battery voltage: Automatic 12/24 V detection
- Remote switch functions: On, off, auto, start assist
- Dimensions, hxwxd: 157 x 140 x 80 mm/6.2 x 5.5 x 3.1 inch
- Weight: 0,88 kg/1.9 lb
- Compliance: CE
Technical Specifications:
- Connection possibilities: 3 x fast-on connectors (switch, ground, and status) • switch: for an optional single pole ON-OFF-ON switch for remote operation • status: for an optional LED indicator
- Power consumption: Switch open: < 1 mA at 12/24 V DC
- Battery types: Suitable for charging from Lithium starter batteries to all types of batteries (for AGM/GEL starter battery applications, please use 83309002)
- Switch on voltage: 13.7 V (12 V) / 27.4 V (24 V)
- Switch on delay: 5 sec
- Switch off voltage: 13.3 V (12 V) / 26.6 V (24 V)
- Switch off delay: 2,5 sec
- Relay: Electronically (MOSFETs with a low voltage drop of max 0.2 V)
- Temperature range (ambient temp.): -40 °C to 60
- Protection degree: IP65
Owner's Manual (pdf)
Brochure (pdf)


Mastervolt Charge Mate Pro Lithium 90 [83309004]
The vast majority of our products come from the United States, which explains our delivery times consequently between 1 and 4 weeks. It is possible to receive your parcels in express (7 working days) for some products, you will find all the information on the delays and on the costs according to each product on the product page.
SHIPPING POLICY
1. Costs and shipping options Shipping costs vary according to the country of the recipient. Our products are shipped from the USA to France, and we dispatch all our orders from France. The final dispatch shipping costs will be displayed during the purchase of your order (before payment) according to each country and the delivery options chosen.
2. Delivery time Most of our products come from the USA. Therefore, we have a preparation time of 1 to 2 weeks to receive the goods at our French office at 7 rue Alaric II 31000 Toulouse for final shipment. It takes 1 to 3 weeks from the order date to the delivery date. It is possible to receive your parcels in accelerated shipment for certain products in stock at our French office. You will be able to see the exact delivery times, shipping costs, and whether the product(s) you have chosen is (are) eligible for express shipping when you place your order. This may vary depending on your delivery address.
REFUND POLICY
We have a 30-day return policy, which means you have 30 days after receiving your item to request a return.
To be eligible for a return, your item must be in the same condition that you received it, unworn or unused, with tags, and in its original packaging. You’ll also need the receipt or proof of purchase.
To start a return, you can contact us at info@stock4less.eu If your return is accepted, we’ll send you a return shipping label, as well as instructions on how and where to send your package. Items sent back to us without first requesting a return will not be accepted.
You can always contact us for any return question at info@stock4less.eu.
Damages and issues
Please inspect your order upon reception and contact us if the item is defective, damaged or if you receive the wrong item, so that we can evaluate the issue and make it right.
Refunds
We will notify you once we’ve received and inspected your return, and let you know if the refund was approved or not. If approved, you’ll be automatically refunded on your original payment method. Please remember it can take some time for your bank or credit card company to process and post the refund too.
Return procedure
When you contact us to request a return, we will send you a prepaid return label with which you can return your package. This will be a label from your local post office or DHL depending on your location. You then just have to follow the procedure that will be indicated to you. Once we receive your return, we will send you your refund using the same method as your payment, or we will send a new product depending on your request.